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

Okay, so I ordered these to replace the one in my Hotsprings hot tub's ozone injection line that had failed again after only one years use. So far this one is working great and I think I might have figured out why the other ones keep failing. I shut down my hot tub during summer months, and I leave water in the tub during shutdown as instructed buy my hot tub repair guy in order to preserve the glued connection fittings throughout the tub. This check valve was originally located just above the ozone injector and when the tub was not running, water would work its way up the tubing to the valve. I believe the valve sitting in the water for four months caused it to fail. I have relocated the valve closer to the ozone maker and now when the tub is not running, water can not reach the valve. I will update this post if this does not fix the problem. If using in a hot tub, make sure the water can not reach this check valve when the tub is not running.

They are true to size and worked perfectly on my hot tub application.

seems ok

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

Lasted less than 3 months. Used as check valve for ozonator in a hot tub. Within 3 months, valve degraded and stuck closed.

Perfect fit to repair my leaky hot tub

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

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

I guess I could have gone to Jacuzzi and paid 4 times extra for the exact same thing, but glad I didn't. Worked perfectly for my hot tub ozonator. Back in business. Shame on jacuzzi for price gouging gullible customers.

Vu le prix du clapet anti-retour Sauermann j'ai mis du temps a trouver et choisir un clapet antiretour pour ma.pompe a condensat. Très satisfait fait le travail. A voir la tenue dans le temps.

Entspricht der Beschreibung, alles i.o.

Utilisé afin d'éviter les retours d'eau sur des pompes de relevage (évacuation des condensats de clim). C'est parfait !