Golan - 3/8 NPT PetcocksGolan Products introduces the worlds first Ball Bearing Petcock with detents for quick, effortless switching from ON to RESERVE to OFF. You can now switch petcock positions with confidence, each position having its own, easy to feel detent, O Ring seat secure any leak from the petcock to the carburetor, Petcock handles motion is virtually friction free using internal ball bearing which reduces the effort needed to move the lever. SAFETY FIRST Large