2Pcs Odor Proof Floor Drain, Floor Drain backflow Preventer, Shower Plug, Magnetic One-Way Drain Valve, Prevent Odor Dispersion in Bathrooms, and Kitchens (1.5''-2.0'' Caliber)

Fit and works perfect. The builder forgot a P trap. Saved us 1200 on plumber. No sewer odor

It broke wild trying to put it in.

Definitely works like the description says.The shower was put in without a trap and we sometimes get sewer gas smell that comes up the main line. This product drops right into the drain and was very easy to install. It has a hair collection on the top that helps all the hair from the ladies of the house. 10/10 would buy again.

There were no installation instructions tions. Don't see how it can prevent backflow due to the fact it isn't secured in the drain.

We rent our home, and the P-trap in the main shower stopped working, causing unpleasant sewer odors to seep into the house. I tried every backflow product I could find—most managed to block the odor but left me standing in ankle-deep water because they slowed the drain. This product, however, is a game-changer. It completely eliminated the sewer odors and kept the water flowing smoothly. Highly recommend it for anyone dealing with similar issues!Time will tell how long it lasts, I suspect I’ll have to replace it eventually once the magnetic valve wears out.

Muy bueno

not gonna work with 2" pvc pipe properly

The media could not be loaded. The flap opens and allows for nearly unrestricted flow and doesn’t backup my basement utility sink drain like other models did. The seal is not 100% water tight- but it’s perfectly acceptable and will slow back flows to a crawl. I took a video to show it is nearly water tight when submerged in a cup. Exactly what I was looking for, flow was my number one concern and back flow prevention was a bonus and for me it checks both boxes.