Watts LF288A 1/2" Lead-Free Brass Anti-Siphon Vacuum Breaker Backflow Preventer, Female NPT Inlet and Outlet, Silicone Disc Seat, Chrome Hood, Low-Flow Applications

The one that comes with the RV is really cheap plastic and under the bathroom sink. I ordered this one as a replacement before our first trip. This is heavy and seems really quality. I've only been on a couple of trips with it but am very happy. I think it is well worth the extra money.

Backflow preventers are required for water top-off lines to swimming pools. This US-made Watts version has long been the industry standard. They don't last forever; but they work better and last longer than alternatives. If you are replacing an older version of this model of Watts, this new one will fit the same, without soldering, done in a few minutes.

Had to replace mine on a Hobart LXi dishwasher. Well built part out of good metals. I did take it apart to see the internal parts as well. The plastic, and rubber looked well built too. Easy to replace.

We added brass PEX fittings for 1/2" PEX to replace the improperly installed, cheap, plastic vacuum breaker valve installed on our RV for the black tank rinse system. It works fantastic and substantially decreases the chances of a failed plastic vacuum breaker valve at the worst possible time.

This will replace the check vlv under the bathroom sink for the last time. original is plastic and break and leak when using and u won't know until you have water on the floor and isnt worth the time to buy n replace.spend the extra and go this route.wont be sorry Easy to install.

Direct replacement for our backflow .

A quality product that I received quickly. Installed easily and now I don't have any leaks.

I used this to replace a leaking valve on my swimming pool. The old one was dripping. The new works perfectly, no more drips. The best thing I liked about it, it was way cheaper than a plumber.

Hopefully will prevent future issues. Worked well this past year

Good product