Review on Raybend Silent Threaded Check Valve by Anthony Arcos

I confess I was skeptical of everyone who said this was "silence". but damn it is! Our septic tank is just below our living room. and we heard the "knock" of the closing check valve whenever it worked, but no more. Very good product, was a direct replacement for my Pro Series 2400 unit (primary and backup). and I hope to have many years of it. The old one was painful to pull off. but this one is on and working fine! Highly recommended. It's a bit more expensive than others, but it's worth it for the lack of noise.