









🚿 Seal the deal on stink—never smell your drains again!
Grate Seal 3 & 4 Inch is a durable, flexible polymer one-way valve designed for easy retrofit into existing drains. It permanently blocks sewer odors, drain flies, and insects without altering plumbing or obstructing water flow. Maintenance-free and proven effective in diverse settings, it offers a hassle-free solution to unpleasant drain issues.
| ASIN | B00PIPPMT6 |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (64) |
| Date First Available | November 12, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.89 ounces |
| Item model number | GS01 |
| Manufacturer | Grate Seal |
| Part Number | GS01 |
| Product Dimensions | 8.27 x 3.94 x 3.94 inches |
X**R
IT WORKS!!!
We had the most awful smell coming from a floor drain in my business, and this product fixed it immediately. We cut it down to the correct size and it fits like a glove. No more bad smell! Buy it immediately if you have the same issue!
N**K
Eliminated unpleasant smell from drain in basement
A drain in our basement was making our house smell like a sewer. We have a 3 inch drain opening, so I had to cut the product down to the 3 inch rung. The smell is gone and it was very easy to get it installed. I wish I had known about the product sooner. It is totally worth the money to eliminate the unpleasant smell forever and not worry about the drain being blocked.
T**D
Better design, but trim with care
Better design than that of the Jay R. Smith Mfg. version. Handles waste very well, seals like a champ. Only reasons I gave 4 stars is the high price and the ease of trimming the device to fit a 3" pipe. I found it is best to use a pair of scissors to trim, rather than using a utility knife (if you use a knife, you may end up cutting yourself as the rubber is slippery).
J**E
Not for toilets
I bought this for a toilet. The opening doesn’t accommodate flow for toilets. Otherwise it should work for drains pretty well.
B**H
No more wet floor
Great product! I have a four compartment sink, two drains in my bakery. Prevents water from overflowing in floor drain when four sinks drain simultaneously. Easy to cut to fit with a scissor. Install takes less than 5 minutes.
J**C
No more smelly sewer gas!
No more smelly sewer gas! We have a floor drain in our utility room that released the worst smelling sewer gas. After putting this in, smell is gone! Super easy to install. Very happy
J**1
Works perfectly!
Easy to install. High quality and perfect fit. Highly recommend.
N**S
Awesome Product.
Worked perfectly. I had to cut to size but did exactly what I needed it to do.
Trustpilot
1 day ago
2 months ago