30-0043 50 psi PVC 2-Port Check Valve, 2"

Admittedly, I was skeptical when I bought this but I thought it has to be an improvement over the giant "THUNK" we hear throughout the house every time the downstairs pump shuts off. I got it installed and ran the downstairs water until the pump kicked on. My dad and I were standing right next to it and heard absolutely nothing, I truly mean nothing. I should have change out the old one 3 years ago when we moved in.

Plastic blew apart after a few weeks. The mess from this was awful.

Our old check valve would slam down and you could hear it throughout the house. The pipes would shake violently. I installed the Zoeller and rubber mounted everything with rubber sleeves and now all you hear is the quiet sound of rushing water and the pipes no longer shake! If you have a noisy check valve, I highly recommend this as a replacement, no need to put up with all the noise!

We went from hearing a clunk every time the sump pump ran to hearing the swish of water if we listen very carefully.

Amazing. Didnt believe it until I saw it. Use this on 2" sump pump line and works perfectly quiet

fast delivery . the item so far works great

Works well!

Works great!