Great valve By Brad on 4/9/2015
Brad would recommend this product to a friend
Needs higher reverse pressure By Phat_Rat on 9/9/2014
Phat_Rat wouldn't recommend this product to a friend
The valve itself looks good, and seems to function, but only if there's a high enough water pressure flowing back against it. I put it on the return of my sump, and turned off the pump to test it. The pressure from the back-siphon wasn't terribly much, and water flowed back through the valve and began filling my sump. Not sure I'd use this unless it was for a HUGE build
Works so good By edward on 5/6/2012
edward would recommend this product to a friend
I got one of these for my tank and recommended it to a friend and he got one too. This is a must have, great peace of mind knowing my tank won't back fill into my refuge.
Good product By Matthew on 12/1/2011
Matthew would recommend this product to a friend
I have this product installed on my return to my tank. This product is made from clear pvc which is nice because you can see the condition of the swing valve inside. This is helpful because you can see if it needs cleaned. As for cleaning this valve it's very difficult to clean. I would recommend installing this using two unions so you can pull it out and clean it if needed.