LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in, not on the machine. Worlds best-selling original locking grease coupler. Rated 10,000 PSI. Long-lasting rebuildable tool.

Perfect. Now the grease goes into the fitting and not on me. Love this thing.

The LockNLube does as advertised, it stays locked on the zert. The problem I have is that the lever is wimpy and has bent making it hard to open the jaws up far enough to get on the zert.

Great product

Works as described

Was having problems with a new grease gun head, would stick on my tractors zerk fittings. Bought the Lock and Lube head and now greasing up fast.

Replaces the tips that comes with the grease guns. Works awesome allows you to get on the grease zerk and stays. No More Mess of the grease going everywhere but in the grease zerk.

This thing is awesome. No more having the grease gun stuck on zerks. Simple to use and also allows you to not have to hold onto the grease fitting and balance the gun with the other hand. This is a handy tool.

I was constantly struggling with couples that did not fit the various vehicles I service. Now one coupler does it all. Great idea - works like a charm.

I cant figure out how I used a grease gun for so long without this. Roadranger cross shafts are tricky though.

Works as advertised. Doesnt fit in tight places.