This is one of two options we have for an ECM Giotto OPV Valve (see also 1523561).
This OPV (Over Pressure Valve) is a perfect retrofit for the original 1/8 FEMALE version found on ECM Giotto.
Inlet side 1/8 FEMALE BST
Outlet Barrel Fitting (for Silicone Hose)
80mm Long (varies with pressure adjustment)
26mm Diameter