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.

Used for new tractor..... works great!!

Best grease attachment I have ever bought. No more grease spitting out the side when greasing up equipment. Only one zerk I cant get with it because it is just a little too long.

It works OK.Difficult to use in tight places. If you get a straight on shot of the fitting its great.

Just used this for the first time. Able to grease zerks I was never able to grease before. Great tool!

Should have bought one of these a LONG time ago.

Great coupler Easy to put on and it stays on.

Works like advertised

Works great! I highly recommend--just wish I would have bought one of these years ago.

I have several of these for each grease gun I run. I have two at home and three at work! I will not service equipment without the LocknLube! Highly recommended piece of equipment!

GREAT ITEM! FAST SHIPPING.