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.

What a disappointment. Truly. This was one product I was really looking forward to using so I purchased it in April and finally got to give it a workout on my tractor winterizing for the season. Miserable experience. It worked on the very first Zerk and crapped out afterwards forcing me to go back to the old “push clamp” tip. I even thought I was applying it wrong so I used a brand new Zerk to no avail. Grease everywhere but in the Zerk. Truly unfortunate since I was so looking forward to a quick and easy winterizing season.

So far it’s been great to use. It locks on tight. I don’t waste anywhere close to the grease I used to. It’s simple to use. But it does add a little bulk and length making it harder to get into tight places. Where you may need to get a 90 degree fitting to clamp onto to use. It comes with a rebuild kit for when it wears out and you can get more of those when the time comes. I have no idea how long it’ll work so good until you need to rebuild at this point. I’m using it with my new milwaukee m18 grease gun. It’s a great combo.

Yes worked good

This thing leaks just as bad as my regular coupler. It works nice putting on and off fittings but false advertisement to say it does not leak. Thank you amazon for letting me return this POS! 35 dollars I can get a whole bunch of my regular couplers.

This is money well spent. Wish I could of found this along time ago. No more greasy hands or grease not going through fitting. Seems to blow through it at ease.

works well, I used it to grease my John Deere lawn tractor

I greased my tractor, ride on mower and truck in half the time with almost no mess and wasted gobs of grease. Like having a helper.

I was very skeptical when I first ordered LockNLube. I was thinking these would be sold with grease guns if they did what the seller said they would do. After several ripped out, and broken off grease zerks, I dont know how I didnt already have one. Do yourself a favor and go buy one for each grease gun you own, because youll only be using the one with the LockNLube if you dont. Easy to use. Makes greasing your vehicle a breeze while doing that oil change. The seller is awesome also. Sent me an e-mail to make sure the product was up to my standards. I highly recommend this product, if you havent already figured that out.

Havent used it yet but hopefully this will solve my lube problems lol. Very pleased when it showed up in perfect condition and included a rebuild kit. Will try to remember to write another review after using it.

Great product. I run heavy equipment and I can get 2-3 years of service out of one coupler that’s with it being used every day all spring,summer and fall