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.

Fits all the different sizes on my tractor and it has been used a lot. Good tool for the box. Shipped as expected.

Makes grease jobs alot easier, if the grease fitting accessible real easy, some fitting are hard to get so the fitting is long,however lube my tractor its great. I would recommend this tool.

I’d recommend this hands down. Clicks on and off without any issue. I’ve had no issue with it at all. Two thumbs up.

I have had problems using regular ends on my skidsteer. So far this is the fix!

First and Foremost, it makes getting the grease gun off the Zerk fitting. I would have to struggle especially with snowblower and auger to reach, let alone moving and getting enough leverage to pull it off. Lock and Lube has made it super simple and easy.

With all of the great reviews I thought this would be great. I installed it on one of my Lincoln grease guns and gave it a try. I cleaned off the zerk and clamped the coupler on and then grease shot out from between the coupler and the zerk. THinking it is the zerk, I tried another and the same thing. Then I went over to the tractor and tried those with the same result. I uninstalled the locknlube and put the stock coupler on and went back and greased all off the fittings with no problem.

No mess and easy to use

These hold on to the grease fitting, easy on easy off. Grease goes in not all over...

This seals tightly and does not jump off even the old zerks on my tractor. I recommend and would buy again.

If you have a lot of greasing to do, just go ahead and buy this. Shines when having difficult fittings to reach. Once its on the fitting, its locked on. Saves cuss words.