Ultra-Drain Seals®

Stop spills from going down the drain

The Ultra-Drain Seal is a valuable addition to any emergency response plan, spill kit or stormwater management program.  

This storm drain cover is constructed with a flexible, non-absorbing material and reinforced tear-resistant mesh, the pad is designed to quickly and effectively seal a drain in an emergency.

Key Features:
  • Both sides are designed to effectively seal most drains (no top or bottom).
  • Resists oil, water, and most aggressive chemicals, cleans with soap and water.
  • Mesh interior is sandwiched between layers of polyurethane, which increases durability and gives it the flexibility to deform and seal off most drains.
  • Optional Ultra-Drain Seal Wall Mount Units allow a “grab and go” response to any spill. 


NOTE: Not intended for long-term outdoor use (more than two (2) hours), as UV exposure and/or heat for extended periods can degrade the product. For applications where extended use may be required, the Ultra-Drain Seal Plus should be considered.


Technical stuff.  Inventory.  Lead times.  Local distributor.  We've got the answers.

Contact Us

Due to the nature of softer urethane, the physical properties of these products may change with exposure to certain environmental conditions like temperature, humidity, and UV radiation. Regular inspection of the stored product should be done to ensure it is in a usable state 


Ultra-Drain Seal (Square)

Part # Dimensions in. (mm) Weight lbs. (kg) Where to Buy
2126 18 x 18 x 3/8 (458 x 458 x 10) 5.0 (2.5)
2127 24 x 24 x 3/8 (610 x 610 x 10) 8.0 (3.5)
2130 36 x 36 x 3/8 (915 x 915 x 10) 20.0 (9.0)
2131 42 x 42 x 3/8 (1,067 x 1,067 x 10) 23.0 (10.5)
2132 48 x 48 x 3/8 (1,220 x 1,220 x 10) 36.0 (17.0)
2133 54 x 54 x 3/8 (1,372 x 1,372 x 10) 41.0 (18.5)

Ultra-Drain Seal (Circular)

Part # Dimensions in. (mm) Weight lbs. (kg) Where to Buy
2134 12 dia. x 3/8 (305 x 10) 3.0 (1.5)
2135 20 dia. x 3/8 (508 x 10) 6.0 (3.0)
2136 30 dia. x 3/8 (762 x 10) 11.0 (5.0)
2137 42 dia. x 3/8 (1,067 x 10) 19.0 (9.0)

Ultra-Drain Seal (Rectangular)

Part # Dimensions in. (mm) Weight lbs. (kg) Where to Buy
2124 18 x 58 x 3/8 (458 x 1,474 x 10) 16.0 (7.0)
2125 36 x 58 x 3/8 (915 x 1,474 x 10) 26.0 (12.0)

More info / Downloads


Product Data Sheet:  Drain Seal

Chemical compatibility

Wrong Way Wednesday

Frequently Asked Questions

Can I leave a Drain Seal on top of the drain for long periods of time? 
The Ultra-Drain Seal is made with urethane and will degrade/break down in extended UV exposure.  It is recommended that Drain Seals only be exposed for as long as required to contain and clean-up a spill.  Long-term outdoor use is not recommended.


Can you drive over a Drain Seal? 
It is not recommended that the Ultra-Drain Seal be driven over under any circumstances.  The softer nature of the material can be damaged under vehicle tires and other equipment.


How do I clean the Drain Seal? 
Typically, a standard soap and water mixture is all that is needed to clean the Ultra-Drain Seal.  Once it has been cleaned it should be allowed to air dry and then returned to its original packaging.


Is the Drain Seal reusable? 
Yes, the Ultra-Drain Seal is reusable provided that it has not been exposed to a chemical that has caused any degradation.


Can I cut the Drain Seal? 
The Ultra-Drain Seal has reinforced tear-resistant mesh "sandwiched" between layers of urethane, cutting it is NOT recommended as it may cause the unit to delaminate. 


Are custom sizes and/or shapes available? 
Yes, custom shapes and sizes are available.  Please contact our customer service department for more information.


What size Drain Seal should I use? 
For best results, use an Ultra-Drain Seal that is at least 6” larger than the outside of the grate.


What is the best way to store a Drain Seal? 
The Ultra-Drain Seal should be stored in a cool, dry area in the box that it is shipped in.  Optional hard-plastic carrying cases that can be wall mounted or truck mounted are also available.  It is important that the Ultra-Drain Seal does not touch itself because, over time, the touching areas will fuse together.  This can be prevented by using the cardboard tube and plastic sheeting each unit is shipped in. 


Your compatibility chart says 'NR' for the chemical that I'm using.  What exactly does that mean?  
'NR' stands for 'Not Recommended'.  HOWEVER, it is worth noting that most chemical compatibility guides (ours included) are based on a one-year immersion test.  In other words, the material being tested is completely immersed in the chemical in question.  After one year, the material is removed and checked for any degradation.  Needless to say, a spill response product is not going to be exposed to a chemical for a year.  So it's possible that the Ultra-Drain Seal will be effective against a spill of a chemical that is listed as 'NR'. The best way to know for sure is to test for yourself.  Please contact our customer service team and they will be able to send you a no-charge sample.


Patents Page