G Green Drain 3" Waterless Trap Seal

purchased the 3.5 inch waterless trap seal and works like a charm to get rid of any bad drain smells as well as stopping drain flies from coming out! highly recommend to anyone facing bad bathroom / laundry room smell issues!

works well!

Super product, 4 stars - too expensive, make it cheaper please

The product would be 5 stars if they could actually get the dimensions proper as per the manufacturer's website. It is well built and sturdy design, but outer tolerances are off as I ordered based on fit range in millimeters from Green Drain website. I have verified my inside drain diameter, and it should have a slight friction fit, but instead just slides into drain without any resistance. At the moment I have cut a band from a bicycle inner tube, and wrapped it around the outside to provide enough friction fit so it doesn't fall down into the trap below.

I think the bad reviews are for small drains. That said I’m using this in a 5” basement floor drain that goes straight into the sewer. My washer and utility sink drain into it, and it has no P Trap in the concrete floor. It smelled like the house sewer, stunk up the whole basement and house. Because of the immediate bend in the drain a Sureseal wouldn’t work. I popped this in and it’s been working for weeks without a problem. I’ve been very happy with it. I’ll probably buy a few spares, but it has been holding up to a house of 4 washing clothes, utility sink use, and a 3 Ton AC condensate drain line. It can handle a high flow of water, (like many many many gallons at a time) so I’m not sure what the negative reviews are about it draining slowly are about - probably bad plumbing and not the device itself.

Works like a charm

⭐️⭐️⭐️⭐️⭐️ **¡Adiós a los insectos! Un producto que realmente funciona** Desde que mudé a mi nueva casa, había estado lidiando con un problema constante: insectos que venían por la tubería. Era frustrante y, sinceramente, me quitaba la paz. Así que decidí probar estos **sellos de trampa de agua**, y ¡qué gran decisión! Desde el momento en que los instalé, noté una diferencia inmediata. Estos sellos están diseñados para permitir el paso del agua, pero impiden que cualquier sabandija regrese. Y puedo decir con confianza que han hecho un trabajo excepcional. No solo he dejado de ver insectos en mi baño y cocina, sino que también me siento mucho más tranquilo sabiendo que tengo una barrera efectiva contra esos intrusos. La instalación fue fácil y no requirió herramientas complicadas, lo cual fue un gran plus. Si estás teniendo problemas similares, no dudes en probar estos sellos. ¡Son una inversión que vale la pena para mantener tu hogar libre de insectos!

Used as a cover for a 3.5” basement clean out access which is at the lowest point in my basement. Heavy rains will sometimes raise the water table causing water seepage through the concrete floor. This trap seal acts as a clear pathway for water to drain directly into the main line.