Grate Seal® 100mm and 80mm Technical Specification Image click to zoom

Create a permanent and maintenance free, one-way seal for 4" or 100mm and 3" or 80mm drains and floor wastes with the GS01 Grate Seal®.

$55.00 Add to cart

The GS01 Grate Seal® is a specially designed rubber, one-way valve that is easily retro-fitted into 4" or 100mm and 3" or 80mm drains and floor wastes preventing sewer gases, airborne bacteria, soap suds, vermin and noise from making their way out of the drainage system into habitable areas.

As a Watermark® approved product, the one way valve does not restrict flow, and the flow rates achieved more than cope with the maximum allowable flows from plumbing fixtures such as showers. Unlike other products on the market, a water seal is not required for Grate Seal® to be 100% effective making Grate Seal a permanent and maintenance free solution.

Grate Seal® is produced from an antimicrobial polymer compound making it durable and resistant to breaking down and allowing it to be used in a wide variety of applications, including the medical and commercial field. 

Grate Seal® is supplied at a low cost considering the problems that are resolved without having to remove or replace tiled surfaces, concrete, waterproofing, etc. 

Simply cut along the marked line to convert from 4" or 100mm to 3" or 80mm (GS01 model only).

Installation Tips Technical Specifications

11 Reviews

Assaad on 29 Jan 2018 8:42pm

My laundry floor waste in my unit kept on foaming up with suds. As soon as we installed Grate Seal, no more foaming suds! So easy and simple to install.

Elee on 29 Jan 2018 8:39pm

I have used this product in all my rental properties and my tenants couldn’t be happier with the results. NO MORE SMELLS!

Mahesh Gunajee on 6 Nov 2017 7:46pm

It’s working here in United Arab Emirates as well. One of our happy client given feedback after using the 100mm Grate seal inside their SPA, where they used to get the bad odor from the mixture of massage oil. Happy with the result. Thanks Grate seal.

Renee on 25 Oct 2017 10:29pm

Ok, this is such an amazing thing!!! We moved into a new place and the shower drains were so stinky it was driving us crazy. We tried everything and in desperation I went searching for something online and found this website. We now have one in every drain in the apartment and it’s amazing. No bugs, no smells. So simple and no more stinky showers. Thanks guys!!!!

MaryAnn on 2 Oct 2017 8:58pm

We were getting the most putrid smell in our laundry day after day. We tried everything, pouring domestos, disinfectant and anything else we could find down the drain to rid us of that smell. It would last for only a few hours and then return the next day. We put a grate seal in and Presto!!! NO MORE SMELL EVER!!!! Amazing product - I'm ordering two more today!

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