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Marine Plumbing

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Keep your boat’s plumbing running smoothly with our complete range of marine plumbing products. Choose durable hoses, fuel & water lines, and stainless steel worm drive clamps for secure connections. Upgrade hot water systems with ATI stainless steel tanks, boilers, and heating elements. Fit your system with TruDesign composite fittings, ball valves, and non-return valves. Add bronze or stainless fittings for corrosion resistance, plus Arctic Steel seawater strainers and scoop strainers for reliable water flow and engine protection.

All (129)
Hose (12)
Hot Water Systems (11)
Trudesign Composite Fittings (31)
Bronze Fittings (10)
Stainless Fittings (26)
Seawater Strainers (65)
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  • Truedesign Hose Tail 90 Degree Elbows Truedesign Hose Tail 90 Degree Elbows

    Truedesign Hose Tail 90 Degree Elbows

    Hose Tail 90 Degree Elbow Designed and made in New Zealand, TruDesign Long Thread Tails are the superior composite connection for fitting hoses to threaded fittings. TruDesign Tails are moulded from a glass reinforced nylon composite. High strength,...

    $7.26 - $24.40
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  • Trudesign Y Pieces Trudesign Y Pieces

    Trudesign Y Pieces

    Y Piece Joiner Designed and made in New Zealand, Tru-Design Y Pieces are the superior composite connection for combining the flow from 2 hoses. The Y Piece allows smooth flow leading to reduced chances of blockages. Salt buildup is reduced when used...

    $12.23 - $17.25
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  • Trudesign Aquavalve Hose Tail 120 38mm

    Trudesign Aquavalve Hose Tail 120 38mm

    Trudesign Aquavalve Hose Tail 120 38mm Aquavalve fittings are suited to the most common sizes of tubing used in marine plumbing. Tails come packaged together with a Blue Seal, which is thicker than the Red Seals included in the Aquavalve, to allow the...

    $14.40
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  • Aquavalve Hose Tail 38Mm 3 Pack Trudesign Aquavalve Hose Tail 38Mm 3 Pack Trudesign

    Aquavalve Hose Tail 38Mm 3 Pack Trudesign

    Tru Design Aquavalve Tail Set 38mm - 1½" BSP Aquavalve fittings are suited to the most common sizes of tubing used in marine plumbing. Tails come packaged together with a Blue Seal, which is thicker than the Red Seals included in the Aquavalve,...

    $26.40
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  • Trudesign Aquavalve Hose Tail 25mm 3 Pack Trudesign Aquavalve Hose Tail 25mm 3 Pack

    Trudesign Aquavalve Hose Tail 25mm 3 Pack

    90262 - Aquavalve Tail 25mm - 1-1/2" BSP - 3 Pack Aquavalve fittings are suited to the most common sizes of tubing used in marine plumbing. Tails come packaged together with a Blue Seal, which is thicker than the Red Seals included in the Aquavalve, to...

    $17.05
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  • ATI Adjustable Safety Thermostat ATI Adjustable Safety Thermostat

    ATI Adjustable Safety Thermostat

    ATI - Thermostat Replacement thermostat for ATI boat boilers. Comes complete as an adjustable safety thermostat

    $46.85
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  • ATI 500kPa Pressure Relief & Non-Return Valve

    ATI 500kPa Pressure Relief & Non-Return Valve

    ATI 500kPa Pressure Relief & Non-Return Valve Stainless steel replacement pressure relief & non return valve. Prevents water back flow & relieves pressure in the boiler. 1/2 Fittings.

    $50.00
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  • ATI 550W & 1250W Heating Element Gasket

    ATI 550W & 1250W Heating Element Gasket

    ATI 550W & 1250W Heating Element Gasket Replacement gasket to suit all ATI boat boilers. Suitable replacement for 550W & 1250W elements. Composite construction.

    $7.50
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  • ATI 550W Water Heating Element 230V ATI 550W Water Heating Element 230V

    ATI 550W Water Heating Element 230V

    ATI - 230V 550W - Electrical Water Heating Element Replacement 550w incoloy element for Stainless Steel ATI boat boilers. Produces hot water when engine heat isn't available & 230 volt is.

    $95.00
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  • ATI 1250W Water Heating Elements ATI 1250W Water Heating Elements

    ATI 1250W Water Heating Elements

    ATI 1250W Water Heating Elements Replacement 1250w incoloy element for Stainless Steel ATI boat boilers. Available in 120 and 230V. Produces hot water when engine heat isn't available & 120 or 230 volt is. Gasket sold separately.

    $95.00 - $153.12
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  • ATI Thermostatic Water Mixer Kit ATI Thermostatic Water Mixer Kit

    ATI Thermostatic Water Mixer Kit

    ATI Thermostatic Water Mixer Kit Complete ATI hot water mixer kit. Adjust hot water temperature to suit your requirement. Bronze & Stainless Steel hardware.

    $190.00
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