Item No.: B07P515
.Spring steel jaws are resilient under high pressure - max 10,000 psi.   
.Grease goes IN, not ON the machine.
.No more grease mess everywhere.   
.Fits standard Grease Guns - 1/8” NPT fitting.
.Fits all SAE and Metric Zerk fittings.   
.Simply replace your existing coupler