SUNGATOR 6-Pack Vacuum Breakers, 3/4'' Anti Siphon Valve Outside Faucet, 3/4 Inch GHT Hose Bib Backflow Preventer for Outdoor Faucet, Brass 3/4'' Hose Bib Anti-Backflow Vacuum Breakers for Garden Hose

Very nice kit. It comes with everything you need. I have them on all my outside faucets and they work great.

The water was spraying out when I turned on the hose. I replaced what I had with this connector. No more spraying and leaking when it's operating or when I turn off the water. The product came with six, including tape and rubber seals, in a handy plastic container. Quick fix. I'm pleased.

Solid product lots of extra washers installed easily.

This comes in a very well thought out kit with added hose washers and Teflon tape. I put these on a freeze proof faucets with 100 psi pressure and they work very well. Use tip, when you turn the water off, holes around the diameter of the device open to bleed the pressure off. If you have a nozzle or other device causing back pressure you WILL get wet. When you turn the water off, it is best to insure your nozzle is wide open to help bleed the pressure off the hose and place your hand over the fitting on the faucet to deflect the water away from your pants.

I was installing 2 outdoor spigots. My local big box hardware store only had spigots with anti-siphon AND anti-freeze. Since all of my spigot is installed outside, I don't need the added expense of the anti-freeze feature. The local big box hardware store did have vacuum breakers like this, but their price was about 1/3 more for 2 of them. These seem to work exactly like the more expensive ones. I think it's a little odd that these come with a roll of teflon tape for installation. If I were going to install these with teflon tape, I would have expected to supply my own. And there is more than enough tape on the roll for this, and a few other projects.

I have only used it for a few days now but the product its well made and I believe it will last for a long period of time. As depicted it comes with extra gaskets and thread tape which it nice, it also comes with a little plastic case which is usefull for storing the extra gaskets.

FINAL UPDATE 3/15/2024: Shortly after updating my last review, the seller offered a refund for (1) set of the vacuum breakers. I think this is great customer support. I'm not adjusting the review rating, b/c I believe this is a reflection of product quality; however, I do want to commend the seller's customer support. I think you can buy with some confidence more than alternatives knowing this seller would be willing to provide compensation in case of failure. 5-star to 3-star update: Purchased my first set (2) years ago. I liked them so much I purchased (4) more over the past year. 2/6 have started failing - leaking out of the small "ejection" ports. I've been unable to stop the leaking - new o-rings, tightening, loosening, and putting on a different hose bib haven't worked. I also have noticed the (2) failing breakers ALSO make a high-pitched noise (mostly heard inside the house) when in-use. When not in-use I turn my hosebib off (i.e. there's not constant pressure against the breaker).

These are great, relieves pressure on the hose after use without spraying everything with the hose. Easy to install and use