GF Piping Systems192304008 PVC Y Check Valve, Wye, EPDM Seat, EPDM Seal, 1" Spigot

I use this for my 36 gallon reef tank (fish and live coral). I have several thousand worth in live coral and can't afford too many mistakes when it comes to plumbing, filtration and water circulation. At the same time I can't afford a power outage that allows the exhaust water to backfill and flood my home. I researched several types of Y style check valves and after talking with Dr. Mac at Pacific East Aquatics in Marydel Springs, MD I went the extra mile for this check valve over a few cheaper styles that were sure to fail over time.After installing it and using it for a little over 2 years now it's never failed once and eventually you WILL have a power outage. Also very easy to clean and access the interior parts which you can't do with other models or style of check valves.Having previously owned a 90 gallon reef tank it wasn't uncommon to come home to find 20-30 gallons of saltwater on the floor due to whatever reason for a power outage. That's both time and money as well as clean up costs down the drain. Luckily with a larger tank you have a lot more forgiveness in temperature swings and chemical changes. In smaller tanks thats not even an option. Othe roptions including carefully placed pinholes in the uptake tube or U tube sometimes worked but were never guaranteed if something happened to plug it up including algae growth or a snail, etc.For me this was an absolute answer to a years old problem and it works 100% of the time. Quality of the parts is nothign to sneeze at either. Very durable non UV effected plastics and seals.

Works perfectly with no appreciable effect on flow rate.

These things are amazing. No back flo at all when system is off. My only gripe is the price. IT is really very very expensive.

Love the product, it works as intended, it’s easy to clean and it’s well made

Upon initial hook up the check valve didn't seat properly, so I took it apart and put it back together and has been working just as it should thereafter. Much easier to maintain versus the standard swing check valve.

High Quality check valve. I use this on the return line for my 75g in wall. Price is also more than fair

I have this for my reef tank and i have to clean it weekly during water changes as it gets stuck. By the end of the week if the power goes out it won't work as described. I've had 2 floods already. I know you are probably looking for a cheaper alternative to the one with Bulk Reef Supply. Do yourself a favor and buy the one from them instead. I'll be requesting a refund.

Over priced and has to be clean ever other week to work consistently.