ITEM NAME:Heavy-Duty Quick Release Grease Gun Coupler Zerk Fittings 10,000 PSI 1 JJL.1X Grease Coupler. The nozzle's seal ring is made of conical rubber to ensure that the coupling will not leak, very sealed and durable. No need to hold while greasing, Lock-on and free up both hands to operate your grease gun, Easy clip-off.
