1/4" 6mm PVDF Ozonator One-way Check Valve for Hot Tub, Oxygen Barb Plastic Micro Diaphragm Water Stop Spa Ozone Generator Check Valve

Previous models got waterlogged once a year - this one restored the ozone bubbles and seems more rugged - better material. After six months, all good.

Replaced faulty (old) check valve. Make sure you verify flow direction, it is very tight fitting (this is a good thing as the system is under pressure).

My hot tub is back up and running.

Both of these valves failed within a week. Used for Spa ozonator.

I needed a anti back flow for a windshield washer pump I installed on a Canam Spyder. Not for the windshield,but to spray on me when the heat index is over 100 deg,F. A quick burst helps cool me down and makes a big different in comfort level. I run distilled water in the system to avoid water spots on the bike.

So I purchased these to replace the check valve in an under cabinet soap dispenser. They are much better made that the one that came with the dispenser originally and seem to working really well. Would recommend

Great used this to stop the back-flow of my baby girls Podee bottle

First one failed in a hot tub ozonater application within 90 days. We’ll see for the 2nd!