Shower Drain Floor Drain Backflow Preventer Magnetic Levitation One-Way Drain Valve Fast Drainage Shower plug Insert Drain Plug Fit for Tube Depth 2.56-4.13in (Caliber（2-3.9in）,Depth 3,15in)

Best system need to put in all apartments in Dubai. But price very high must be cost 40

this product works great for me. i live in a tiny home with no pee trap in the shower. I also only have a small 20 gallon hot water heater and use a low pressure shower head with low water adjustment turned down to save water since I enjoy my hot showers.. this product drains good even with low water pressure going in the drain.. the only time it drains slower for me is because hair has accumulated in the hair catcher.. once cleaned it drains great and back to normal.. the cleaning is very easy, just pop off the drain cap in shower and clean filter and unscrews the valve and check to make sure no hair is there to be cleaned out,, very easy and quick just a few minutes of my time.. i do recommend this item if your willing to do quick maintenance on it.. 5 stars for me,, it was needed,, no more smell,,

Previous I ordered and I got exactly the same as the pictures… now I order it not the same and seems like has poor quality…

A neat little unit but does need to be trimmed and in my case I had to use a dremel tool to shape the flange to fit the smaller PVC pipe that was installed in the shower floor. Nicely prevents sewer gas from coming up through the drain and should prevent back flow of water as well. The prices for similar units vary from about 30-70 bucks, but this one works fine.

Easy to install, the water does drain a bit slower. I bought it for two reasons, one to prevent back flow, the other is prevent radon gas from entering. Very happy with the product.