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ULtimate Door™

Basic Use

To provide easy access into high-temperature air ducts and grease duct systems. This door was designed for applications requiring UL 1978 listing.


Sandwich Access Door for grease duct or high temperature applications.

Special Characteristics

  • UL 1978 Listed
  • Easy to install sandwich design with no special tools required
  • Minimal penetration into the duct
  • Dramatically reduces installation time
  • No welding required
  • Grease and air tight
  • Meets NFPA 96 Standards
  • Union made in the U.S.A.
  • Door is completely removable for easy cleaning
  • Can be used with all types of duct wrap insulation systems

Grease Duct Wrap Systems


The ULtimate Door has been qualified for use with FyreWrap® fire rated grease duct enclosure systems. Listed by Intertek Testing Services; approved for FyreWrap Elite 1.5 Duct Insulation systems tested per ASTM E-2336 and UL 1978.

Our ULtimate Door is specifically referenced in the Unifrax International Code Council (ICC) Evaluation Service Report Number ESR-2224, confirming compliance with 1997 ICBO UMC, 1997 UBC, 2006, 2009, and 2012 additions of the IAPMO UMC and IMC codes. Complies with NFPA 96. FyreWrap Technical Bulletin

Testing Data - ICC-ES Evaluation Reports


Additional Information

Fire tested performance and proven reliability offers contractors and local authorities the flexibility to meet grease duct jobsite conditions and the documentation required to verify compliance with local regulations.

The ULtimate Door is available with an insulation kit and an outer back plate. Please refer to the spec sheet for ordering information.

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