proflow pressure relief valve, supercharger, universal, -04an orb, black

This manual pressure relief valve can be used to relieve pressure in superchargers by pressing down on the plunger. With either AN4 or 1/8” NPT thread, they can be used for many other applications also where pressure relief is sometimes necessary. Comes in a black anodised finish.

Tested to withstand up to 40 PSI.