Valterra 200-CU15 PVC Swing/Spring Combination Check Valve, Clear, 1-1/2" Union

It requires pretty precise measurements and seems built for heavy duty and long life. It's been working well and hopefully will outlast the valve it replaced.

The media could not be loaded.  I like how you can visually see the swing check working. This is a great product so far. Easy install with the unions.

We use check valves on all our systems and this an accurate. And quick closing , non fluttering check valve, pay attention to flow orientation when installing and don’t get glue inside !

So after installing a high-end, very expensive variable-speed water pump, the water system wasn’t working right. One of the issues we surmised might be happening is back pressure on the supply line. A check valve seemed to be the next step in eliminating variables, and so we decided to try this unit. Part of the decision to go with this particular piece of equipment was 1) it is see through. We would immediately know if our theory was right or wrong by visual confirmation, instead of guessing or installing unnecessary pressure gauges. 2) it can be used in a horizontal configuration. Most other see-through check valves are designed to only work in vertical applications. This fit our water system design perfectly. Happy ending: this unit worked like a champ! It fixed the problem we were experiencing. We could see that there was slight incoming pressure with the ‘flap’ being slightly open, and once the pump kicked on, we could see right away that the flap closed/sealed tight against the housing. I will probably buy more of this unit in case it ever fails in the future. For the price, this is an inexpensive insurance policy! Highly recommend.

I broke 4 or 5 of the home depot ones that have a seam in the middle. This one works perfectly and easy install, no leaks.

Works great and like the see through.

Sump pump is quieter, had clamp on style before..... it came apart..... lucky i was home. ... glued this one in and have complete confidence its good now.

I debated between this check valve and the cheaper ones that use rubber connectors with hose clamps on each end. Even though this was more expensive I was very happy I spent a few dollars more after installing. It's a lot more durable and locks the piping together. Nothing flimsy about this connection. It acts as a union as well making disassembly to replace your sump (in my case) down the line a whole lot easier. Great fit and glued up very well.

Silent. Not a sound. Easy to install. Make sure you use the specific abs to pvc glue if installing on abs, this is made of pvc

Fácil de instalar y confiable

Very Quiet

Con esta válvula terminó el efecto golpe de ariete. está muy bien.

Good value, very quiet and easy installation