Yeah Martyn (K1an0)on the GT4 club makes nice simple plumbing parts ones=20 and sells them through the club. His are the striaght line ones, rather=20 than the T piece ones though. You need to disconnect it to adjust, but=20 they are less prone to jamming, and don't need the tiny bleed hole that=20 the T-piece ones need on the out put side of the controller.
--=20 "Sorry Sir, the meatballs are Orf" The poster formerly known as Skodapilot.