PRISM petcocks are guaranteed for life! If you're having an issue with it you can send it back to us and we will rebuild it for no additional cost!
This unique petcock fits direct to either a 3/8" NPT bung on your gas tank. This keeps your gas tank looking very clean. It features a 5/16" diameter hose barb on one end and a fuel filter on the other. Rotating the cylindrical piece with the two grooves is how the fuel is toggled on and off. The fuel line does not rotate while toggling the fuel on/off.
Many custom and aftermarket gas tanks use a 1/4 inch NPT or 3/8 NPT petcock
NPT stands for National Pipe Thread and it is a tapered thread that seals as you tighten the petcock into the threaded fitting on your gas tank