Jabsco Twist ‘n’ Lock Manual Marine Toilet

The Jabsco Twist 'N' Lock Manual Marine Toilet is available with a compact 29090-5000 bowl or regular 29120-5000 bowl. Both versions use raw-water flushing, a self-priming manual pump, 19 mm inlet and 38 mm waste outlet.

The 90-degree Twist 'N' Lock handle closes the waste outlet valve after pumping to help reduce backflow and siphonic flooding. The toilet can be installed above or below the waterline when the sanitation system includes the correct seacocks, vented loops and discharge arrangement.

Product Identification

• Brand: Jabsco
• Product name: Jabsco Twist 'N' Lock Manual Marine Toilet
• Model / part number: 29090-5000, 29120-5000
• Marine Scene SKU: ASAP-JAB-29090-5000, ASAP-JAB-29120-5000
• Product category: Manual marine toilet
• Quantity supplied: One selected product or kit

What Is the Jabsco Twist 'N' Lock Toilet Used For?

This toilet provides manually operated marine sanitation for sailing boats, motorboats and inland-waterway craft. Waste can be directed to a holding tank, treatment system or a permitted overboard discharge, subject to local regulations.

What Is Included?

• One complete Jabsco manual toilet in the selected bowl size
• White vitreous-china bowl
• Twist 'N' Lock manual pump and base assembly
• Standard-close wooden seat and lid

What Is Not Included?

• Sanitation hose, hose clips and through-hull fittings
• Seacocks, vented loops and anti-siphon components
• Holding tank or treatment system
• Installation fasteners not supplied in the packaged product

Which Products or Systems Is This Compatible With?

• Raw-water flush systems using sea, river or lake water
• 19 mm (3/4 in) inlet hose and 38 mm (1-1/2 in) sanitation hose
• Holding-tank, treatment-system or permitted overboard-discharge installations
• Above- or below-waterline installations when correctly plumbed

How Do I Select the Correct Model or Confirm Compatibility?

• Choose 29090-5000 where installation space is limited and a compact bowl is required
• Choose 29120-5000 for the larger household-style regular bowl
• Confirm the overall dimensions and fixing space before ordering
• Do not connect either model to the vessel pressurised drinking-water system

Construction and Design

• White vitreous-china bowl
• Baked-enamel wooden seat and cover
• Corrosion-resistant moulded pump and base
• Passivated stainless-steel fastenings and marine-suitable seals
• Reversible pump arrangement for right- or left-hand operation

Installation and Safety

Close and secure the inlet and discharge seacocks before installation or service. Use marine sanitation hose of the stated size, install vented loops where required by the plumbing layout, keep hose runs short and test for leaks and correct operation before use.

Maintenance

Use only suitable toilet tissue and mild non-abrasive cleaners. Inspect the pump, joker valve, hoses, clips and seacocks regularly, and service the toilet with the correct Jabsco kit when pumping effort or flushing performance changes.

Key Features

• Compact and regular bowl options
• 90-degree Twist 'N' Lock waste-valve closure
• Self-priming double-acting manual pump
• Constant 38 mm waste path
• 360-degree adjustable discharge elbow
• Raw-water flushing without electrical power

Frequently Asked Questions

Can this toilet use the boat freshwater system?
No. These models are designed for raw-water flushing from sea, river or lake water.

What is the difference between the two models?
The pump, inlet and outlet arrangement are shared; the 29090-5000 has a compact bowl and the 29120-5000 has a larger regular bowl.

Does Twist 'N' Lock replace a vented loop?
No. The locking handle supplements a correctly designed sanitation system and does not replace required seacocks or vented loops.

How do I know whether this part is compatible?
Match the exact Jabsco model or part number first, then confirm the connection size, voltage, dimensions and application shown in the specification table.

Are installation accessories included?
Only the components listed under “What Is Included?” are supplied. Hose, wiring, fittings, switches and fasteners are excluded unless stated otherwise.

Specifications