




🚿 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 |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (64) |
| Date First Available | November 12, 2014 |
| 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.
J**1
Works perfectly!
Easy to install. High quality and perfect fit. Highly recommend.
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).
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**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.
S**E
Looks good. Hope it stops the smell.
Piece of cake. Took a razor knife to cut off the larger lip so it would fit my drain. I ordered a too large size but with trimming the large end down it now fits nicely. You need to measure the inner diameter of the actual pipe not the upper part of the Drain that the screen attaches to. It does seem to work. The drain is a little slower but that's what it is designed to do.
N**S
Awesome Product.
Worked perfectly. I had to cut to size but did exactly what I needed it to do.
Trustpilot
2 weeks ago
2 weeks ago