Jabsco Pumpgard 46400 Series Pump Inlet Strainer

The Jabsco 46400 Pumpgard 40-mesh pump inlet strainer range protects compatible marine freshwater-pressure and washdown pumps from debris that could obstruct pump valves, pressure switches, taps, shower heads or spray nozzles. Choose from hose-barb or threaded inline models and direct plug-in versions for compatible Jabsco pump ports.

All five variants use a reusable 40-mesh stainless-steel screen, transparent screw-off polysulfone cover and 30% glass-filled polypropylene base. The transparent cover permits visual inspection, while its removable design allows the screen to be cleaned without removing the complete strainer from the installation.

Product Identification

• Brand: Jabsco
• Product range: Pumpgard 46400 Series
• Product category: Marine diaphragm-pump inlet strainer
• Part numbers: 46400-0000, 46400-0002, 46400-0004, 46400-0012 and 46400-0014
• Marine Scene SKUs: CW-46400-0000, CW-46400-0002, CW-46400-0004, CW-46400-0012 and CW-46400-0014
• Filter rating: 40 mesh
• Available configurations: Inline hose-barb, inline threaded or direct plug-in
• Applications: Marine freshwater-pressure and washdown pump systems
• Quantity supplied: One selected strainer

What Is the Jabsco 46400 Pumpgard Strainer Used For?

The Jabsco Pumpgard strainer is installed on the suction or inlet side of a compatible diaphragm pump. It captures particles before they enter the pump head, where debris could obstruct check valves, restrict flow or contribute to premature pump failure.

The 40-mesh screen is suited to installations serving fine spray nozzles, higher-pressure applications, sink taps and shower heads. It is a mechanical debris strainer rather than a water purifier or disinfecting filter.

Which Models Are Available?

• 46400-0000: Inline strainer with 19 mm (3/4 in) hose-barb inlet and outlet
• 46400-0002: Inline strainer with 13 mm (1/2 in) hose-barb inlet and outlet
• 46400-0004: Inline strainer with 1/2-14 NPS external-thread inlet and outlet
• 46400-0012: Direct plug-in strainer with 13 mm (1/2 in) hose-barb inlet and plug-in pump outlet
• 46400-0014: Direct plug-in strainer with 1/2-14 NPS external-thread inlet and plug-in pump outlet

What Is Included?

• One Jabsco 46400 Pumpgard strainer in the selected configuration
• Reusable 40-mesh stainless-steel screen
• Transparent screw-off cover
• Buna cover O-ring
• EPDM pump-port O-ring on direct plug-in models

What Is Not Included?

• Freshwater-pressure or washdown pump
• Hose or rigid pipework
• Hose clips
• Thread adaptors
• Additional pump-port fittings
• Pump mounting hardware
• Replacement screen or cover service kits
• Water-treatment or purification cartridge

How Do I Select the Correct Variant?

Match both the inlet and outlet connection to the existing pump installation.

• Choose 46400-0000 when both sides of the installation use 19 mm hose.
• Choose 46400-0002 when both sides use 13 mm hose.
• Choose 46400-0004 when the installation requires 1/2-14 NPS external threads at both the inlet and outlet.
• Choose 46400-0012 when the supply uses 13 mm hose and the pump has a compatible Jabsco direct plug-in inlet.
• Choose 46400-0014 when the supply connection requires a 1/2-14 NPS thread and the pump has a compatible Jabsco direct plug-in inlet.

The direct plug-in outlet is not interchangeable with a hose barb or threaded outlet. Confirm the pump model and physical inlet-port design before ordering.

What Is the Difference Between 46400-0004 and 46400-0014?

Both models have a 1/2-14 NPS external-thread inlet, but their outlets are different:

• 46400-0004: Inline configuration with a 1/2-14 NPS threaded outlet
• 46400-0014: Direct plug-in configuration with an outlet that connects to a compatible Jabsco pump port

Choose 46400-0004 for an inline threaded installation. Choose 46400-0014 only when the pump has the corresponding direct plug-in inlet.

What Is the Difference Between Inline and Direct Plug-In Models?

An inline strainer connects between two sections of hose or pipework. Parts 46400-0000, 46400-0002 and 46400-0004 are inline models.

A direct plug-in strainer connects directly to a compatible Jabsco pump inlet. Parts 46400-0012 and 46400-0014 have either a hose-barb or threaded water-supply inlet, but their outlet plugs into the pump's matching quick-connect port.

Which Pumps and Systems Are These Strainers Compatible With?

The Jabsco 46400 range is intended for compatible marine diaphragm-pump installations, including:

• Freshwater-pressure pumps
• Marine washdown pumps
• Systems supplying sink taps
• Shower systems
• Fine spray nozzles
• Other pump systems requiring 40-mesh inlet protection

Compatibility depends on the selected inlet and outlet arrangement. Do not use a direct plug-in model unless the pump has the corresponding Jabsco plug-in port.

Is a 40-Mesh Strainer a Water Filter?

The 40-mesh stainless-steel screen captures visible particles that could damage or obstruct the pump and connected equipment.

It does not remove dissolved contaminants, microorganisms, odours or very fine particles. It must not be presented as a drinking-water purifier. Where water treatment is required, use an appropriate filtration or purification system in addition to the pump-protection strainer.

Construction and Design

• Base: 30% glass-filled polypropylene
• Cover: Transparent polysulfone
• Screen: Stainless steel
• Screen rating: 40 mesh
• Cover seal: Buna O-ring
• Direct-plug port seal: EPDM O-ring
• Inspection: Transparent cover permits visual inspection
• Cleaning: Screw-off cover allows in-place screen removal
• Orientation: Can operate in different mounting positions, subject to access and correct pipework support

Installation and Safety

Install the strainer immediately before the pump inlet so debris is captured before entering the pump head.

• Isolate the water supply and electrical power before installation.
• Select the exact connection arrangement required by the pump and pipework.
• Position the transparent cover where it can be inspected and removed.
• Support connected hose or pipework so its weight is not carried by the strainer.
• Secure hose-barb connections with suitable marine hose clips.
• Use a thread-sealing method compatible with the system on NPS connections.
• Do not overtighten the transparent cover or threaded fittings.
• Check that the cover and O-rings are correctly seated.
• Prime and operate the system, then inspect every connection for leakage.
• Do not operate the pump with a heavily obstructed screen.

Maintenance

Inspect the transparent cover regularly and clean the screen when debris becomes visible or pump flow begins to fall.

• Switch off the pump and isolate the water supply.
• Release system pressure before opening the strainer.
• Unscrew the transparent cover.
• Remove and rinse the stainless-steel screen.
• Inspect the screen for damage or distortion.
• Check the cover and port O-rings for wear, cuts or flattening.
• Refit the screen and hand-tighten the cover.
• Restore the water supply and leak-test the installation.

The official replacement 40-mesh screen and O-ring set is 18753-0040. The replacement cover and O-ring assembly is 20925000A.

Key Features

• Five connection configurations in one Jabsco 46400 listing
• Reusable 40-mesh stainless-steel screen
• Helps prevent particles from obstructing pump valves
• 13 mm and 19 mm hose-barb options
• 1/2-14 NPS threaded inline option
• Hose-barb and threaded direct plug-in options
• Transparent cover for visual inspection
• Screw-off cover for in-place cleaning
• 30% glass-filled polypropylene base
• Transparent polysulfone cover
• Replaceable screen, cover and seals

Frequently Asked Questions

Can the screen be cleaned without removing the complete strainer?
Yes. Isolate and depressurise the water system, unscrew the transparent cover and remove the screen for cleaning.

Is the Jabsco 46400 a drinking-water purifier?
No. It is a pump-protection debris strainer. It does not disinfect water or remove dissolved contaminants.

Can the strainer be installed in any position?
The Pumpgard range can operate in different positions. Install it where the transparent cover remains visible and accessible, and adequately support the connected hose or pipework.

Are the direct plug-in models universal?
No. Parts 46400-0012 and 46400-0014 require a compatible Jabsco plug-in pump inlet.

Does 46400-0004 connect directly to the pump?
Not through a plug-in port. It is an inline model with 1/2-14 NPS external threads at both ends.

What is the difference between 46400-0004 and 46400-0014?
Part 46400-0004 has threaded inlet and outlet connections. Part 46400-0014 has a threaded inlet but a direct plug-in pump outlet.

Which model has 19 mm hose connections?
Part 46400-0000 has 19 mm hose-barb inlet and outlet connections.

Which model has 13 mm hose connections on both sides?
Part 46400-0002 has 13 mm hose-barb inlet and outlet connections.

Which replacement screen is required?
Use Jabsco part 18753-0040 for the replacement 40-mesh screen and O-ring.

Which replacement cover is required?
Use Jabsco part 20925000A for the replacement cover and O-ring assembly.

Specifications

Select by the exact inlet and outlet arrangement. Direct plug-in models require a compatible Jabsco pump port and are not interchangeable with inline hose-barb or threaded strainers.

Select by the exact inlet and outlet arrangement. Direct plug-in models require a compatible Jabsco pump port and are not interchangeable with inline hose-barb or threaded strainers.