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.

Must be held perfectly straight or it will leak. No better than my old one. Over priced.

Like it alot...does what it says and makes greasing much easier. One little issue is on some of the bucket grease fittings that are a little tight, even after scraping out gunk this coupler had trouble locking on...small price to pay for the ease of greasing most fittings.

This is what you need if you grease any kind of equipment. Easy to use, stays on the fitting, and keeps the grease in the joint where it is needed, not all over the place. Easy to remove as well. I have two now and will be getting more for all my grease guns.

Worked great!

It locks and lubes, what more could you want? Why are you so nosy, just buy it, well?

Not great fro confined spaces since its a bit larger, but still really awesome. No more hose popping off the fittings

Worth a couple dollars more . Works better than the others . And its rebiuldable

I bought this because my old connector was so hard to get on and off. This new one is so much easier to get on and off. You basically pull the connector back, slide it on the grease fitting and let go. To remove it you do the same thing. Very easy! Highly recommended.

Grease gun stays connected every time its used.

I very rarely write reviews, so to write one at all means this grease gun tip is exceptional. I have been working with and servicing heavy equipment for 40 years, and I always struggled with grease guns and there lousy, poorly engineered tips. Where has this been my whole life? Best money you will spend.