Fermus Shower Floor Drain Insert Drain Plug Anti-Odor Plug Sewer Core One Way Drain Valve Backflow Preventer for Basement Drain, Suitable for Drain Tube 1.25-1.65in, Minimum Drain Depth 2in (Gold)

The item fits snug in the shower drain hole. The water flows down the drain with no problem. The best part and reason why we got the device, the bad odors from the drain pipe do not come through. Perfect solution to a big odor problem.

Flap did not open properly leaving pool of water at the bottom of the sink slow drain instead of a open flush. But it looks good🫣

es de buena calidad pero deja de funcionar con rapidez se queda abierto

No more stinky fumes and sewer bugs. Cheaper on temu but this came in a day.

Excelente

This item does serve as a one way valve. The water however flows through slowly leaving a backed up in the shower.

Pésima calidad una vez ya instalada no deja correr el agua cuando trate de sacarlo se rompió lo cual creo será inaceptable la devolución

Quedó perfecto lo recomiendo , así no se tapará nunca y evitará que entren cucarachas a tu ducha

Fits a 1.5” diameter ABS pipe. Inside diameter. Very easy to install. Spray a little silicone on seal, slides right in. It is made of brass so it won’t rust out. This will definitely prevent backflow from your sewer system.