Grate Seal 50mm
Grate Seal 50mm
Your simple, effective solution for smelly drains.
Create a permanent and maintenance free, one-way seal for 2" or 50mm floor and shower drains with the GS50 Grate Seal®.
Pest Free Drains
Durable Design
Easy to Install
Grate Seal 50mm Technical Data Sheet
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Returns
Returns
Incorrect Items:
14 days from receipt of order, strictly only for products in unused, original condition, with labels & packaging (card and clip) intact. Please contact us at sales@grateseal.com.au to arrange the return process.
Return postage is at purchaser’s expense.
For health and safety reasons, we are unable to accept products which have been placed (either fully or partially) into drainage outlets, even if size is determined to be incorrect.
Products which have been customised/trimmed cannot be returned. It is therefore crucial to obtain accurate measurements of floor or shower waste outlet pipes (where the Grate Seal will be installed) to ensure the correct size is purchased.
To avoid damage and to extend the life of the Grate Seal product, no harsh or abrasive chemicals (e.g. bleach, Drano, etc) should be used while the Grate Seal is in situ. Please remove the Grate Seal product prior to their use.
Damaged Items:
Should you received your item in damaged/faulty condition, please contact us at sales@grateseal.com.au
Description
Description
Create a permanent and maintenance free, one-way seal for 2" or 50mm floor and shower drains with the GS50 Grate Seal®.
The GS50 Grate Seal® is a specially designed rubber, one-way valve that is easily retro-fitted into 2" or 50mm floor and shower drains 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.
- Unit is one piece and self cleansing.
- No ridges or braces to obstruct or catch waste.
- No fixing required as the seal stays in place through friction.






Fresh Mornings. No Smelly Drains. Just You, Living Easy.
Imagine starting your day like this—no foul smells, no pest worries, just a clean, calm space to enjoy your routine.
Grate Seal helps you take back control of your home. No more second-guessing that weird smell. No more wasted time on messy fixes. Just a smarter, lasting solution to smelly drains.

How Grate Seal Stops Smelly Drains
Grate Seal creates a tight seal inside your drain, blocking odours, pests, and suds while letting water flow freely.
It’s durable, low-maintenance, and easy to install!
Frequently Asked Questions
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What are some of the Benefits?
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.
Unit is one piece and self cleansing.
No ridges or braces to obstruct or catch waste.
No fixing required as the seal stays in place through friction. -
What is Grate Seal Made From?
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.
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Will it Cope with my water Flow?
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.
Perfect Solution For Smelly Drains
Grate Seal works in homes, businesses and more!
Homeowners
Fresh Bathroom and Laundries
Plumbers
Reliable solutions for your clients
Businesses
Clean environments in hotels, restaurants, hospitals and schools
Blocks off bad smells and odours associated with drains.
So easy to install and smart delivery process
Simple to install. It stops the smell and the unwanted guests in our bathroom.
I like it. I'll buy it again.
Fast delivery. Product seems to be working well. 1min to install
Grate Tips
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Introducing the Grate Seal Bucket Trap (GSBT)
What is a bucket trap? To put it simply, a bucket trap is a filter that is installed into floor drains to prevent solids from entering. A bucket trap generally...
Introducing the Grate Seal Bucket Trap (GSBT)
What is a bucket trap? To put it simply, a bucket trap is a filter that is installed into floor drains to prevent solids from entering. A bucket trap generally...
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Help keep your home COVID-free with Grate Seal
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Great water-saving tips from Grate Seal
Without a doubt, water is the most precious resource on the planet, but it is one that too many people take for granted. The availability of clean water is essential...
Great water-saving tips from Grate Seal
Without a doubt, water is the most precious resource on the planet, but it is one that too many people take for granted. The availability of clean water is essential...