Vacuum Breaker Valve,Hose Bib Backflow Preventer, 3/4 Inch, Brass Finish

Seems to work as intended. But time will tell.

Make sure its the right size for your faucet. Most of these valves stuck with red loctite to the pipe and need heat to loosen up the adhesive. Blowtorch is best but a simple lighter will also work is you are patient and its not windy. Heat up old fitting and use crescent type wrench to untighten clounter-clockwise, holding the knob so you dont tear pipe out or the wall and have a bad day. Tighten new fixture and throw away the screw so next time it will be easier to change.

Easy to install and work great, no more getting soaked

This product is very well made and easily installed and works as it is supposed to. My only problem with the unit is the set screw twisted right off. So be careful when you lock the screw down and don't apply too much pressure (torque) or you will twist the screw right off.

All of these vacuum breakers look completely identical aside from the stampings and I'm guessing they all work the same, so why pay more for one? This HYDRO MASTER appears to be solid brass and it works as intended, so it's a good value for the price I paid at the time of this review. I highly recommend installing this without the snap-off set screw (does this by design) or you will find yourself in my boat of having to replace the faucet because the breaker can't be removed when it fails, and it will eventually fail. I understand the need for these vacuum breakers to prevent potentially contaminated water from backflowing into the drinking water of one's house, but the snap-off set screw is just idiotic. If they are going to do that, then they should just make faucets with vacuum breakers as a one-piece design. Trust me, it will work just fine without the set screw, and you will thank me down the road when you don't have to spend extra money to replace a perfectly working faucet when the breaker breaks and starts spewing water everywhere. Just keep the set screw in a safe place in case you need to install it for an inspection if you are selling your house.

Good fit/quality; Good price; Hopefully, the internal rubber valve will last as long as the old one.

Set screw is trash. Just a slight tightening with a small nut driver and the set screw broke at the shaft. Now I can't tighten or loosen it and also can't remove it from the faucet! Also the brass (?) material is very small. Very disappointing.

Needed to replace my vacuum breaker valves after the ones that came with my house went bad. My neighbor easily drilled out the old set screw to remove the bad one and screwed this one right on. VOILA! No more water spraying everywhere. You can choose to break off the set screw or leave it on for easier removal later on.

American thread so if your in uk do not use had to return