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Tru Design

Tru Design

Based in New Zealand, Tru Design specializes in the design, manufacture and marketing of high quality marine valves, skin fittings, hose nozzles and associated products.

All Tru Design products are made in New Zealand  out of the latest high impact resistant composite plastic materials designed to meet the demands of the modern boating industry and conform to rigid ISO Marine Standards.

Established in 1974, Tru Design are an ISO 9001 company with over 30 years experience in design tooling and manufacture of injection moulded engineering plastics.  They have over 50 staff including designers, engineers, toolmakers and quality assurance specialists.  Tru Design is well positioned to take products from design concept through tooling and into moulded production, assembly, testing then product approval and dispatch.


  • An essential safety component on all inlet and discharge plumbing of toilets installed below the static or heeled waterline. Simple valve system ensures water cannot siphon over plumbing loops. Available in three sizes for 11⁄2” (38 mm), 1” (25 mm) and 3⁄4” (19 mm) ID hose. Internal valve avoids need for external venting. Molded in tough, corrosion proof plastic. Fitting : Connections for 1-1⁄2” (38 mm), 1” (25 mm) and 3⁄4” (19 mm) ID hose.Size : 1-1⁄2” (38 mm) model: 5” high x 7-1⁄4” wide x 2” deep (12.5 cm x 18.5 cm x 5 cm).           1” (25 mm) model: 5” high x 7-1⁄2” wide x 13⁄4” deep (12.5 cm x 19 cm x 4.5 cm)Weight : 3⁄4” (19 mm) model: 3” high x 3-3⁄4 wide x 1” deep (7.5 cm x 9.5 x 2.5 cm) Tru-Designs vented loop has been designed and manufactured in New Zealand for use in marine applications. Vented loops are commonly used for inlet and discharge pipes on toilet installations below the water line. Our aquavent is moulded in a glass reinforced nylon composite, with a silicon bleed valve. The bleed valve allows air into the system to stop siphoning yet seals effectively when water or fluid pass through. The advantage with our vented loops over others is that the internal diameter is the same throughout the bend - meaning there is no restriction. The aquavent can be used as a holding tank vent by replacing the bleed valve fitting with a tube that is connected to a deck level vent.

    (6 items) from AED 44.00
  • Designed and made in New Zealand, Tru-Design vented loops with solenoid are the superior composite siphon break solutions for marine applications. Vented loops prevent water siphoning from underwater skin fittings back into a vessel and therebyguard against accidental flooding and sinking. Vented loops are used predominantly in toilet for overboard applications, toilet inlet applications and holding tank to overboard applications. They can also be used in genset or small engine inlet cooling water systems. A Solenoid controlled vented loop allows the vent to be switched to fully closed. This eliminates air entering the system as occurs with a standard vented loop. The solenoid used is normally open, requiring power only to close the valve. Vented loops are moulded from a glass reinforced nylon composite. High strength, high-modulus glass fibers impregnated into the nylon provides dramatic strength, stiffness, toughness, and dimensional stability to Trudesign loops.

    (8 items) from AED 310.00
  • Scoop strainers keep debris from entering water intakes whilst promoting a healthy flow of water. Moulded in a glass reinforced nylon composite for both strength and the elimination of electrolysis. Can be used both in new installations and with existing installed through-hull fittings.

    (4 items) from AED 24.00
  • The superior corrosion resistance properties of composite skin fittings means electrical bonding of these critical parts is no longer required. When combined with a composite ball valve corrosion in this important area is no longer a concern.

    (12 items) from AED 18.00
  • Skin fittings with tail are designed for use above the water line where a ball valve or seacock is not needed to be fitted. The integrated tail makes for quick, easy and compact installation

    (15 items) from AED 18.00
  • The Recessed Skin Fitting body and nut are moulded from glass fibre reinforced nylon composite. High strength, high-modulus glass fibres provide dramatic strength,stiffness, toughness and dimensional stability. These properties allow a significant weight reduction over metallic fittings. Tru-Design Skin Fittings eliminate the corrosion and electrical bonding problems associated with metallic fittings. Our Skin Fittings meet ISO International Standards giving added assurance of performance in the harsh marine environment.

    (10 items) from AED 18.00
  • A handy tool to help when installing Trudesign skin fittings This small skin fitting tool is designed to fit into the recesses in all of Trudesign’s Skin fittings and is used to hold the head of the skin fitting from urning while the nut is tightened on the inside of the boat hull.

    (6 items) from AED 66.00
  • (10 items) from AED 35.00
  • Angled Tails suited to the most common sizes of tubing used in marine plumbing. Tails come packaged with a blue seal to allow fitting to be rotated to a more suitable position if required.

    (4 items) from AED 22.00
  • These elbows allow for the most efficient routing of hose connections to and from Aquavalves.

    (4 items) from AED 22.00
  • Manufactured from a glass reinforced nylon composite material these hose tail adaptors display high strength and high durability, allowing for secure clamping of hoses.

    (8 items) from AED 13.00
  • The threaded connector was designed to allow connection of rigid PVC piping to the Aquavalve. One end fits into the Aquavalve, sealing on the red seal ring. The other end fits a PVC female adapter (iron to PVC socket), sealing with thread tape

     AED 30.00
  • The tails have parallel threads for sealing using thread tape, and long tails for secure double clamping of hoses.

    (9 items) from AED 12.00
  • This long thread 90° tails are designed to screw into the range of ball valves but can also be used in many applications. Moulded in glass reinforced composite nylon 6 these tails are also suitable for use in contact with petrol and diesel.

    (7 items) from AED 18.00


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