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.

Leaves one hand free

works GREAT,wish i had this years ago

The best product I’ve found for getting grease where you need it. It’s built well and performs.

I haven’t used it yet, but I am sure it will work well. It’s very well built and the locking mechanism will solve the grease getting all over my mower deck

Love the way it makes the less messy

Worked for 3 fittings then failed to seal

Great product. Ended all the struggling trying to get the gun off the zerk fitting.

Works great!!! Locks right on and holds tight.

I have several pieces of heavy equipment. The locking feature is great. Quality product. Still holding up after many uses.

Makes it very easy to lock onto grease zerks. And makes often the hardest part, removing them, easy. It doesnt get stuck like normal press on fittings.