1/2" Sharkbite Commercial Water Hammer Arrestor (Lead Free)

The items both 1/2 inch and the 3/4 version are fine we founds that they did not do the job we found that installing a potable 2 gallon expansion tank on the main water line resolved the hammering immediately at a substantial cost saving

Very easy to install with the shark bite fittings. Stopped the hammering which was driving me crazy.

Our washing machine was hammering almost every pipe in the house, it sounded like someone was shaking the pipes. Installed these on the cold and the hot water supply lines, close to the machine, and all the issues have stopped. We can't hear ANY water hammering

It is just a sharkbite tee, and the expansion chamber, so very easy to install. Only took about 15 minutes.

Sharkbite fittings are the easiest plumbing fittings I have ever used! SupplyHouse shipped fast and secure! Best price I found!

I used the product under my kitchen sink to stop water hammer problem

Arrived the morning after ordering. Had them installed in less than an hour. Sharkbite is fantastic. Works just as advertised, no more knocking on the washing machine pipes.

The Sharkbite fittings took the copper pipe easily,and did not leak. I especially like the fact that the shock arrestor could be installed horizontilly. The shock arrestor solved my water hammer problem.

I have come to love Sharkbite couplings. I am not a pro plumber, but I can sweat copper pretty well. However, Sharkbite just make it sooooo easy. This is especially true if anything needs adjusting - Sharkbite couplings can be added, removed, rotated, etc. Its so easy that it is worth 3-4x the cost. This Hammer Arrestor is trivial to install. If you are having problems with water hammer, this is such a quick and easy fix its stupid not to just do it. However, it has not eliminated 100% of my water hammer, but it has reduced it 80-90%, and when there is hammer, it is much less dramatic. One note about install - if you want to add this into a run of existing pipe you may also want/need a U3016 3/4 Slip Coupling (or a standard sweat slip coupling if thats your thing.)

I had recently added the pex piping to the existing copper piping to replace a shower. After the install a knock noise was noticed and the rep at the big box store had recommended a water hammer arrestor. I googled your site and purchased "2" 1/2" arrestors (one cold, one hot) It took me longer to gather my tools than it did to install. I immediately tested the shower and the noise was gone. I would highly recommend this as it definitely does what it says.