{"title":"Engine Room Blowers \u0026 Ventilation","description":"","products":[{"product_id":"rule-240-inline-bilge-blower-102mm","title":"Rule 240 Inline Bilge Blower - 102mm","description":"\u003cp\u003eThe Rule 240 is a 12V inline marine ventilation blower for 102 mm (4 in) ducting, delivering 235 CFM (6.7 m³\/min) open airflow with a 4.3A draw and 7A recommended fuse.\u003c\/p\u003e\u003cp\u003eThe Rule 240 inline blower is designed to move air through marine ventilation ducting in bilges, engine compartments, galleys and heads. It uses slip-on duct connections, a sealed motor shaft and corrosion-resistant nickel-plated motor housing for permanent boat installations.\u003c\/p\u003e\u003ch4\u003eProduct Identification\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rule\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct name:\u003c\/strong\u003e Rule 240 Inline Bilge Blower - 4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ part number:\u003c\/strong\u003e 240\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Scene SKU:\u003c\/strong\u003e CW-240\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct category:\u003c\/strong\u003e Inline marine ventilation blower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen airflow:\u003c\/strong\u003e 235 CFM (6.7 m³\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuct size:\u003c\/strong\u003e 102 mm (4 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 4.3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended fuse:\u003c\/strong\u003e 7A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition protection:\u003c\/strong\u003e Yes; USCG 183.410 compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity supplied:\u003c\/strong\u003e One blower\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhat Is the Rule 240 Bilge Blower Used For?\u003c\/h4\u003e\u003cp\u003eThis blower is used to ventilate enclosed marine spaces and help remove accumulated vapours, heat and stale air through a correctly designed 102 mm duct system. It moves air only and must not be used as a liquid pump.\u003c\/p\u003e\u003ch4\u003eWhat Is Included?\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eOne Rule 240 inline marine blower\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eWhat Is Not Included?\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eVentilation ducting, clips and outlet grilles\u003c\/li\u003e\n\u003cli\u003eControl switch, cable extensions and waterproof connectors\u003c\/li\u003e\n\u003cli\u003e7A fuse and mounting hardware not supplied in the retail package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhich Marine Ventilation Systems Is the Rule 240 Compatible With?\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFor 12V DC marine electrical systems.\u003c\/li\u003e\n\u003cli\u003eConnects to 102 mm (4 in) ventilation ducting.\u003c\/li\u003e\n\u003cli\u003eMount on a secure flat surface in the direction of the required airflow.\u003c\/li\u003e\n\u003cli\u003eUse switching, cabling and a fuse rated for the 4.3A blower load and total cable length.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eHow Should the Blower and Ducting Be Selected?\u003c\/h4\u003e\u003cp\u003eMatch the blower to the complete ventilation system rather than using airflow alone:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply voltage:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuct diameter:\u003c\/strong\u003e 102 mm (4 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePublished open airflow:\u003c\/strong\u003e 235 CFM (6.7 m³\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 4.3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended fuse:\u003c\/strong\u003e 7A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstalled space:\u003c\/strong\u003e 102 x 152 x 106 mm (H x W x D)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eConstruction and Design\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor housing:\u003c\/strong\u003e Corrosion-resistant nickel-plated housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft protection:\u003c\/strong\u003e Front and rear shaft seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition protection:\u003c\/strong\u003e Yes; USCG 183.410 compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE compliance:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 102 x 152 x 106 mm (H x W x D)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eInstallation and Safety\u003c\/h4\u003e\u003cp\u003eInstall the blower and ducting in accordance with the vessel manufacturer’s ventilation plan and applicable marine regulations. Keep duct runs as short and unrestricted as practical, orient the airflow correctly, protect the circuit with a 7A fuse and test airflow before operating an engine or equipment that may produce vapour. The blower is ignition protected but is not a substitute for correct fuel-system maintenance or vapour checks.\u003c\/p\u003e\u003ch4\u003eMaintenance\u003c\/h4\u003e\u003cp\u003eCheck the ventilation system regularly to confirm that air can move freely through the intake, blower and ducting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRemove obstructions from grilles and ducts.\u003c\/li\u003e\n\u003cli\u003eInspect the blower housing, mounting, fuse and wiring.\u003c\/li\u003e\n\u003cli\u003eCheck duct joints for collapse, leakage or detachment.\u003c\/li\u003e\n\u003cli\u003eReplace a blower that is noisy, damaged or fails to deliver normal airflow.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e235 CFM (6.7 m³\/min) open airflow\u003c\/li\u003e\n\u003cli\u003e12V DC operation\u003c\/li\u003e\n\u003cli\u003e4.3A current draw and 7A recommended fuse\u003c\/li\u003e\n\u003cli\u003e102 mm (4 in) slip-on duct connections\u003c\/li\u003e\n\u003cli\u003eSealed motor shaft for moisture protection\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant nickel-plated motor housing\u003c\/li\u003e\n\u003cli\u003eIgnition protected and CE compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eIs the Rule 240 a bilge-water pump?\u003c\/strong\u003e\u003cbr\u003eNo. It is an air blower for ventilation ducting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat duct size is required?\u003c\/strong\u003e\u003cbr\u003eUse 102 mm (4 in) ventilation ducting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be used on a 24V electrical system?\u003c\/strong\u003e\u003cbr\u003eThis listing is for model 240, the 12V version. Use the separately specified 240-24 model for 24V systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the quoted airflow account for duct resistance?\u003c\/strong\u003e\u003cbr\u003eNo. The 235 CFM figure is an open-flow rating. Long, narrow or sharply bent ducting reduces installed airflow.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cdiv style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable class=\"spec-table\" style=\"width: 100%; border-collapse: collapse; font-family: Roboto, Arial, sans-serif; background: #ffffff; text-align: center;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: center; font-weight: 500;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: center; font-weight: 500;\"\u003e240\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eRule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eProduct category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eInline marine ventilation blower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eMarine Scene SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCW-240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eOpen airflow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e235 CFM (6.7 m³\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eCurrent draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e4.3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eRecommended fuse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e7A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eDuct size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e102 mm (4 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e102 x 152 x 106 mm (H x W x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eMotor housing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCorrosion-resistant nickel-plated housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eShaft protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eFront and rear shaft seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eIgnition protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eYes; USCG 183.410 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eCE compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Rule","offers":[{"title":"12v","offer_id":54837965554041,"sku":"ASAP-716706","price":45.98,"currency_code":"GBP","in_stock":true},{"title":"24v","offer_id":64696219533689,"sku":"ASAP-716708","price":62.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/6151\/2725\/products\/31480xl-04725144294212912801280t.jpg?v=1696422724"},{"product_id":"seaflo-4inline-bilge-blower-12v","title":"SEAFLO 4\" Inline Bilge Blower 12v","description":"\u003ch2 class=\"u-text-uppercase u-color-blue u-font-bold\" data-mce-fragment=\"1\"\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cdiv class=\"dsp-descrip\" data-mce-fragment=\"1\"\u003eThe Seaflo inline bilge blowers have been designed to operate efficiently at high output rates providing higher airflow, lower current draw and quieter operation than standard blowers. A five blade fan provides the maximum airflow. Featuring Seaflo's life extending front and rear shaft seals and corrosion resistant motor housing, the 03 and 04 inline blowers are compact and easy to mount on any flat surface, vertically or horizontally and are ideal for use where space is limited.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInline blower Series 04\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eVery low current draw motor\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHigh volume air flow\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLonger blower and battery life\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFive blade fan\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCompact design\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eISO8846 certification, minimum\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSealed motor shaft\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCorrosion resistant plastic housing (ABS)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBuilt in mounting feet\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eVoltage: 12v\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAir flow: 235 cfm \/ 400cmh\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAmp draw: 4.0A\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFuse: 7.0A\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIntake pipe: 102mm \/ 4\"\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWeight: 0.49kg\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePart no. IB123504\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"SEAFLO","offers":[{"title":"Default Title","offer_id":47969726693653,"sku":"BR-IB123504","price":23.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/6151\/2725\/files\/s-l1600_7_2190ff46-dd73-45c4-852c-7f45f6550a82.jpg?v=1708514837"},{"product_id":"copy-of-seaflo-3inline-bilge-blower-12v","title":"SEAFLO 3\"Inline Bilge Blower 12v","description":"\u003ch2 class=\"u-text-uppercase u-color-blue u-font-bold\"\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cdiv class=\"dsp-descrip\"\u003eThe Seaflo inline bilge blowers have been designed to operate efficiently at high output rates providing higher airflow, lower current draw and quieter operation than standard blowers. A five blade fan provides the maximum airflow. Featuring Seaflo's life extending front and rear shaft seals and corrosion resistant motor housing, the 03 and 04 inline blowers are compact and easy to mount on any flat surface, vertically or horizontally and are ideal for use where space is limited.\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eInline blower Series 03\u003c\/li\u003e\n\u003cli\u003eVery low current draw motor\u003c\/li\u003e\n\u003cli\u003eHigh volume air flow\u003c\/li\u003e\n\u003cli\u003eLonger blower and battery life\u003c\/li\u003e\n\u003cli\u003eFive blade fan\u003c\/li\u003e\n\u003cli\u003eCompact design\u003c\/li\u003e\n\u003cli\u003eISO8846 certification, minimum\u003c\/li\u003e\n\u003cli\u003eSealed motor shaft\u003c\/li\u003e\n\u003cli\u003eCorrosion resistant plastic housing (ABS)\u003c\/li\u003e\n\u003cli\u003eBuilt in mounting feet\u003c\/li\u003e\n\u003cli\u003eVoltage: 12v\u003c\/li\u003e\n\u003cli\u003eAir flow: 145 cfm \/ 247cmh\u003c\/li\u003e\n\u003cli\u003eAmp draw: 3.0A\u003c\/li\u003e\n\u003cli\u003eFuse: 5.0A\u003c\/li\u003e\n\u003cli\u003eIntake pipe: 76mm \/ 3\"\u003c\/li\u003e\n\u003cli\u003eWeight: 0.41kg\u003c\/li\u003e\n\u003cli\u003ePart no. IB114503\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dsp-descrip\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"SEAFLO","offers":[{"title":"Default Title","offer_id":47969744388373,"sku":"BR-IB114503","price":19.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/6151\/2725\/files\/s-l1600_7_a4b8361b-23ff-48e8-a267-4dc5f85ba0f1.jpg?v=1708514947"},{"product_id":"rule-140-inline-bilge-blower-76mm","title":"Rule 140 Inline Bilge Blower - 76mm","description":"\u003cp\u003eThe Rule 140 and Rule 140-24V inline bilge blowers provide 135 CFM of open airflow through 76 mm (3 in) marine ventilation ducting. Choose the Rule 140 for a 12V electrical system or the Rule 140-24V for a 24V system.\u003c\/p\u003e\n\n\u003cp\u003eThese compact inline marine blowers are designed to move air through ventilation systems serving bilges, engine compartments, galleys and heads. Both models use slip-on duct connections, sealed motor shafts and corrosion-resistant nickel-plated motor housings for permanent marine installations.\u003c\/p\u003e\n\n\u003ch4\u003eProduct Identification\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rule\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct name:\u003c\/strong\u003e Rule 140 Inline Bilge Blower\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModels \/ part numbers:\u003c\/strong\u003e 140 and 140-24V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Scene SKUs:\u003c\/strong\u003e CW-140 and CW-140-24V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct category:\u003c\/strong\u003e Inline marine ventilation blower\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage options:\u003c\/strong\u003e 12V DC or 24V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpen airflow:\u003c\/strong\u003e 135 CFM (3.8 m³\/min)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct size:\u003c\/strong\u003e 76 mm (3 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity supplied:\u003c\/strong\u003e One blower\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat Is the Rule 140 Bilge Blower Used For?\u003c\/h4\u003e\n\n\u003cp\u003eThe Rule 140 is used to move air through marine ventilation ducting connected to bilges, petrol-engine compartments, galleys, heads and other enclosed boat spaces. It helps remove accumulated vapours, heat, moisture and stale air.\u003c\/p\u003e\n\n\u003cp\u003eThis is an air blower only. It must not be used to pump bilge water or any other liquid.\u003c\/p\u003e\n\n\u003ch4\u003eWhat Is Included?\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOne Rule inline marine ventilation blower\u003c\/li\u003e\n  \u003cli\u003eIntegral mounting feet\u003c\/li\u003e\n  \u003cli\u003eFactory-fitted electrical leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat Is Not Included?\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVentilation ducting\u003c\/li\u003e\n  \u003cli\u003eDuct clips, cable ties and outlet grilles\u003c\/li\u003e\n  \u003cli\u003eControl switch\u003c\/li\u003e\n  \u003cli\u003eCircuit-protection fuse and fuse holder\u003c\/li\u003e\n  \u003cli\u003eCable extensions and waterproof connectors\u003c\/li\u003e\n  \u003cli\u003eMounting screws and installation sealant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat Is the Difference Between the 12V and 24V Models?\u003c\/h4\u003e\n\n\u003cp\u003eBoth variants provide the same airflow, use the same 76 mm ducting and have the same published dimensions. Select the version that matches the vessel's electrical system:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRule 140:\u003c\/strong\u003e For nominal 12V DC systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRule 140-24V:\u003c\/strong\u003e For nominal 24V DC systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe 12V model has a higher current draw and requires a 4A fuse. The 24V version draws less current and requires a 2.5A fuse.\u003c\/p\u003e\n\n\u003ch4\u003eWhich Marine Ventilation Systems Are These Blowers Compatible With?\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003e76 mm (3 in) marine ventilation ducting\u003c\/li\u003e\n  \u003cli\u003e12V or 24V boat electrical systems, according to the selected variant\u003c\/li\u003e\n  \u003cli\u003eBilge and engine-compartment ventilation systems\u003c\/li\u003e\n  \u003cli\u003eGalley and marine-head ventilation systems\u003c\/li\u003e\n  \u003cli\u003eFlat deck, transom or bulkhead mounting surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eHow Should the Blower and Ducting Be Selected?\u003c\/h4\u003e\n\n\u003cp\u003eMatch the blower to the complete ventilation system rather than selecting by airflow alone:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical system:\u003c\/strong\u003e Choose 12V or 24V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct diameter:\u003c\/strong\u003e 76 mm (3 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePublished open airflow:\u003c\/strong\u003e 135 CFM (3.8 m³\/min)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12V electrical data:\u003c\/strong\u003e 2.9A draw at 13.6V; 4A fuse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24V electrical data:\u003c\/strong\u003e 1.7A draw at 27.2V; 2.5A fuse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePublished dimensions:\u003c\/strong\u003e 76 × 127 × 81 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation layout:\u003c\/strong\u003e Keep ducting short and minimise sharp bends or restrictions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eDoes the Published Airflow Equal the Installed Airflow?\u003c\/h4\u003e\n\n\u003cp\u003eNo. The 135 CFM figure is an open-flow rating. Installed airflow will reduce as the length of ducting, number of bends, outlet resistance and inlet restrictions increase.\u003c\/p\u003e\n\n\u003ch4\u003eConstruction and Design\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor housing:\u003c\/strong\u003e Corrosion-resistant nickel-plated housing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft protection:\u003c\/strong\u003e Front and rear motor-shaft seals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct connections:\u003c\/strong\u003e Slip-on inlet and outlet connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Compact inline housing for a secure flat surface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIgnition protection:\u003c\/strong\u003e Yes; USCG 183.410 compliant\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE compliance:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation and Safety\u003c\/h4\u003e\n\n\u003cp\u003eMount the blower on a secure, flat surface and position it so the airflow arrow points towards the exhaust vent. Keep the duct run as short and unrestricted as practical, and protect the circuit using the fuse specified for the selected voltage.\u003c\/p\u003e\n\n\u003cp\u003eKeep electrical connections above the highest anticipated water level and protect them against marine corrosion. The blower must not be submerged or positioned where it will be exposed to continuous spray or deck-wash water.\u003c\/p\u003e\n\n\u003cp\u003ePetrol vapours can explode. Before starting a petrol engine, operate the blower for four minutes and check the engine compartment for vapours. Continue using the blower as required by the vessel manufacturer and applicable ventilation regulations.\u003c\/p\u003e\n\n\u003ch4\u003eMaintenance\u003c\/h4\u003e\n\n\u003cp\u003eCheck the complete ventilation system regularly to confirm that air can move freely through the intake, blower, ducting and exhaust outlet.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRemove obstructions from ventilation grilles and ducting.\u003c\/li\u003e\n  \u003cli\u003eInspect duct joints for collapse, leakage or detachment.\u003c\/li\u003e\n  \u003cli\u003eCheck the blower housing, mounting screws and electrical wiring.\u003c\/li\u003e\n  \u003cli\u003eInspect the fuse, switch and terminals for corrosion or overheating.\u003c\/li\u003e\n  \u003cli\u003eReplace a blower that becomes unusually noisy, damaged or fails to provide normal airflow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003e135 CFM (3.8 m³\/min) open airflow\u003c\/li\u003e\n  \u003cli\u003e12V and 24V variants\u003c\/li\u003e\n  \u003cli\u003e76 mm (3 in) duct connections\u003c\/li\u003e\n  \u003cli\u003eLow-current operation\u003c\/li\u003e\n  \u003cli\u003eSlip-on inlet and outlet connections\u003c\/li\u003e\n  \u003cli\u003eFront and rear motor-shaft seals\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant nickel-plated motor housing\u003c\/li\u003e\n  \u003cli\u003eCompact flat-surface mounting design\u003c\/li\u003e\n  \u003cli\u003eIgnition protected and CE compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the Rule 140 a bilge-water pump?\u003c\/strong\u003e\u003cbr\u003eNo. It is an air blower for marine ventilation ducting and cannot pump liquids.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between models 140 and 140-24V?\u003c\/strong\u003e\u003cbr\u003eModel 140 is for nominal 12V systems, while model 140-24V is for nominal 24V systems. Both provide the same 135 CFM airflow and connect to 76 mm ducting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat duct size is required?\u003c\/strong\u003e\u003cbr\u003eUse 76 mm (3 in) marine ventilation ducting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the 12V model be connected to a 24V system?\u003c\/strong\u003e\u003cbr\u003eNo. Select the model that matches the vessel's supply voltage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the quoted airflow include duct resistance?\u003c\/strong\u003e\u003cbr\u003eNo. The 135 CFM specification is an open-flow figure. Long duct runs, bends and restrictions reduce installed airflow.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow long should the blower run before starting a petrol engine?\u003c\/strong\u003e\u003cbr\u003eOperate the blower for four minutes and check the engine compartment for petrol vapours before starting the engine.\u003c\/p\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\n\u003cdiv style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch;\"\u003e\n  \u003ctable class=\"spec-table\" style=\"width: 100%; border-collapse: collapse; font-family: Roboto, Arial, sans-serif; background: #ffffff; text-align: center;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background: #f5f5f5;\"\u003e\n        \u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: center; font-weight: 500;\"\u003eSpecification\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: center; font-weight: 500;\"\u003e140\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: center; font-weight: 500;\"\u003e140-24V\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eRule\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eRule\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eProduct category\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eInline marine ventilation blower\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eInline marine ventilation blower\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eMarine Scene SKU\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCW-140\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCW-140-24V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eNominal electrical system\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e12V DC\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e24V DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003ePublished test voltage\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e13.6V DC\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e27.2V DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eOpen airflow\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e135 CFM (3.8 m³\/min)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e135 CFM (3.8 m³\/min)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eCurrent draw\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e2.9A at 13.6V\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e1.7A at 27.2V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eRecommended fuse\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e4A\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e2.5A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eDuct size\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e76 mm (3 in)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e76 mm (3 in)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003ePublished dimensions\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e76 × 127 × 81 mm (H × W × D)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e76 × 127 × 81 mm (H × W × D)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eMotor housing\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCorrosion-resistant nickel-plated housing\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCorrosion-resistant nickel-plated housing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eShaft protection\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eFront and rear shaft seals\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eFront and rear shaft seals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eDuct connections\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eSlip-on inlet and outlet connections\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eSlip-on inlet and outlet connections\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eIgnition protection\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eYes; USCG 183.410 compliant\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eYes; USCG 183.410 compliant\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eCE compliance\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eYes\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eYes\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cem\u003eThe stated 135 CFM capacity is an open-flow rating. Installed airflow will reduce as duct length, bends, inlet restrictions and outlet resistance increase.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rule","offers":[{"title":"12v","offer_id":64696261443961,"sku":"ASAP-716704","price":47.98,"currency_code":"GBP","in_stock":true},{"title":"24v","offer_id":64696261476729,"sku":"ASAP-716705","price":56.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/6151\/2725\/files\/716705.jpg?v=1790246531"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/6151\/2725\/collections\/2018-Oil-extractor_52f9dcd4-7068-47fc-bb3c-886972f70808.jpg?v=1792144071","url":"https:\/\/marinescene.co.uk\/collections\/engine-room-blowers-ventilation.oembed","provider":"Marine Scene","version":"1.0","type":"link"}