LockNLube Grease Gundom - Grease Gun and Coupler Cap

So far it seems to be sealing from the nasty oil leaks grease guns have over time.

I don't use my grease gun that often - really just to periodically grease my zero turn mower. The rest of the time it sits on a hook and inevitably there will be a big oily stain on the garage floor below it. I switched to one of the mini grease guns because I figured I could limit how much I was using and keep the rest of the grease in the tin, which works way better at controlling separation. Only problem is it's a pain in the butt to manually fill grease from a tin into the barrel of a mini grease gun and it runs out much quicker too. This product works great at preventing an oily mess on your floor. It won't stop the separation which is another issue affecting the quality of your grease, but it's cheap enough to buy new tubes if they separate badly enough.For reference, I use this on a Harbor Freight gun and it fits perfectly. Bit of a tight squeeze, which is intended to keep it securely attached, but the oil on the outside of the gun helped it slip on easier.

I had high hopes for this product. I've put up with leaky grease guns for years and thought that this would be just the ticket, but it's not. After just four months the Gundom split through. Even the smaller cover for the grease coupler is starting to split as well. Since lots of buyers are happy with this product maybe it's just the orange ones. I hope so because I also have a yellow one on a different gun.It's not worth the effort to send this to Lock-n-Lube for a replacement. The shipping would probably cost about half the price of a new one. Besides I wouldn't trust a replacement to work any better.I've used the Lock-n-Lube couplers ever since they introduced them and the couplers are great. The gun covers - not so much.

The coupler cap split after the first use. I had to rig it up with some electrical tape.The barrel cap is holding together so far.Seller reached out and sent a replacement. Excellent customer service!

Love Lock n lube products. They all work flawlessly. Would highly recommend to anybody,

Grease guns always leak. This is an awesome way to stop it. There is a plug for the bottom and the grease servicing end.

I have a grease gun with nlgi 0 corn head grease and the follower rod would not stay up inside it. The bottom gundom keeps the rod in and catches the oil leaks. The coupler cap is also nice for keeping things clean. This is a simple but useful invention.

I haven't used it yet but I'm giving it low marks already just because this thing is MASSIVELY overpriced for what it is. I would think a simple sleeve of rubber like this would cost no more than $1 each. this rubber seems really thin and flimsy, and the price is crazy. Other reviewers say that there are durability problems, that wouldn't be a big issue if they were priced more appropriately but they're not, so it will be, if they don't hold up