T-piece connector TRUDESIGN

The 1½" Threaded T-Piece features 2x internal threads and 1x external thread enabling them to be joined together to create manifolds - useful for multiple hose connections to a single ball valve & thru-hull fitting.

The centre female thread is shorter and designed for use with AQUAVALVE tails giving the option of tail sizes from 19mm up to 38mm.

NOTE: all AQUAVALVE tails that are used with the T-piece do not face-seal using the Red or Blue washer as they do when used in Aquavalves. Instead, use a suitable thread sealant or PTFE tape to seal threads.


TRUDESIGN is the world leader in fittings made from composite materials. From its founding in 1974 the fittings are manufactured in New Zealand. Every TRUDESIGN part is made from high tensile composite GRP, a glass fibre reinforced Polyamide (6). The advantages are a high rigidity, temperature-resistance -40° to 80° C, resistant to oil and chemicals, of low weight, absolutely corrosion-resistant, electrically non-conductive and therefore especially suited for ship building materials which are galvanically sensitive like aluminium and steel. Every TRUDESIGN fitting has a tapered Whitworth pipe thread BSP (British Standard Pipe Thread) according to ISO 228-1, it is therefore fully convertible with fittings from brass, bronze or stainless steel. The shuttle valves and through hulls are approved and IMCI certificated after ISO 9093-2 (sea cocks and through hulls for pleasure vessels).