Backflow Preventer for Shower Floors, One-Way Drain Valve, 304 Stainless Steel, Anti-Odor Stopper for Bathroom (1, Depth 6.1 cm)

Bueno

We were about to tear up the basement shower to put a proper p-trap in the shower floor, and this was my last try for a solution before digging into the concrete. It works! It fits perfectly, slid into place, drains well, and the stink be gone! Excellent quality as well, sturdy stainless steel design. Very happy with this product and would recommend 100%!

I had a standing shower that did not have a p trap under the drain. Bathroom smelled because of sewage gas travelling back into the bathroom. This did the trick as it holds enough water to block any smell that P trap is supposed to do. Great buy and I would recommend it.

Execelente producto buena calidad y buen Precio

This is a clever, well made device that solves exactly the problem that I have: the installed shower drain does not have a p-trap installed due to slope issues and concrete flooring. And the vertical pipe up from the sewer pipe to the drain hole is about 3". This device slid easily into that space, and the extra rubber space provide a good seal to the 2" pipe walls. The system fills its "trap" with water, creating a mini "p-trap" type seal, so that water flows downward, but smells cannot pass through the standing water inside the trap. Another commenter didn't like that there is standing water in this system: but that's how all p-traps work - there's standing water right under a bathroom sink in the p-trap there (or there should be). As long as this device is used regularly, it should be fine. In fact, for shower and floor drain situations, this seems better than a p-trap because I can remove it and clean it out easily, whereas cleaning a p-trap that was embedded in concrete requires a snake or drain cleaning solvents. Also, this device doesn't seem to slow the speed at which the drain works at all - I have a full flow showerhead and I don't get any additional backup or pooling of water on the shower floor: it flows out just as it did before I installed this device.