Chopper Brass Lever Style Barbed Fuel Petcock Stop Cock Gas Valve - 1/4" NPT - Chopper Bobber Cafe Racer Brass lever style petcock / stock cock 1/4" Male NPT with a stepped barb for use with any 5/16" ID hose. Can be used with gas AND gasohol. Maximum pressure = 100 psi @ 150 F Temperature Range = 32 to 150 F We also sell this as a kit with a bung, hose and hose clamp.