Ultra-Drain Seals®

Plus Models

Ultra-Drain Seal Plus protects drains and can be left outside long-term

The Ultra-Drain Seal Plus is a long-term solution for storm drain protection.  Its multi-layered design is better suited for extended exposure to ultraviolet (UV) rays and can be left in place for longer periods of time.

  • Urethane bottom layer (same as Ultra-Ultra-Drain Seal) keeps spills from entering drains. Flexible, non-absorbing bottom layer material is reinforced with tear resistant mesh.
  • Rugged, reinforced polyethylene top layer (yellow) provides protection from extended UV exposure.
  • Excellent for use in parking areas, loading docks and other areas where drains may need longer-term spill protection.
  • Helps comply with SPCC and NPDES.




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 WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Ultra-Drain Seal Plus (Square)

Part # Dimensions in. (mm) Weight lbs. (kg) Where to Buy
2166 18 x 18 (458 x 458) 7.0 (3.0)
2167 24 x 24 (610 x 610) 15.0 (7.0)
2160 36 x 36 (915 x 915) 23.0 (10.5)
2161 42 x 42 (1,067 x 1,067) 27.0 (12.0)
2162 48 x 48 (1,220 x 1,220) 43.0 (19.5)
2163 54 x 54 (1,372 x 1,372) 53.0 (24.0)

Ultra-Drain Seal Plus (Circular)

Part # Dimensions in. (mm) Weight lbs. (kg) Where to Buy
2174 12 dia. (305) 4.0 (2.0)
2175 20 dia. (508) 7.0 (3.0)
2176 30 dia. (762) 13.0 (6.0)
2177 42 dia. (1,067) 26.0 (12.0)

Ultra-Drain Seal Plus (Rectangular)

Part # Dimensions in. (mm) Weight lbs. (kg) Where to Buy
2164 18 x 58 (458 x 1,474) 20.0 (9.0)
2165 36 x 58 (915 x 1,474) 38.0 (17.0)

More info / Downloads


Product Data Sheet:  Drain Seal Plus

Chemical compatibility

Frequently Asked Questions

How do I clean the Drain Seal Plus? 

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


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


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


What is the best way to store a Drain Seal Plus?
The Ultra-Drain Seal Plus should be stored in a cool, dry area in the box that it is shipped in.  It is important that the Ultra-Drain Seal Plus does not touch itself because, over time, the touching areas will fuse together.  This can be prevented by using the 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 Plus 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

  • Spill Prevention, Control and Countermeasure Act (SPCC)
  • 40 CFR 122.26