Hart & Cooley 180142 051007 Flex Duct 10 in. x 25 ft. R4.2

These insulated air ducts offer a durable, scuff-resistant black polyethylene vapor barrier which provides improved protection against damaging ultra-violet light. Installation is made easy with the reinforcing fiberglass yarn scrim which acts as a ripstop and helps prevent tearing. Concerned about code approvals? These insulated flexible duct products meet or exceed the requirements of most federal, state, and local mechanical and energy codes. The insulated flexible duct complies with The Standard Mechanical Code (SBCCI), the National Mechanical Code (BOCA), the Uniform Mechanical Code (ICBO), NFPA 90A and 90B, HUD, and the Florida Energy Code, just to name a few. Be certain that the duct you are buying meets these stringent codes. UL-LISTED. These flexible air duct connectors have been rigorously tested by Underwriters Laboratories, Inc. in accordance with UL 181, The Standard for Safety for Factory-Made Air Ducts and Air Connectors. UL is a not-for-profit laboratory with an outstanding reputation for fire safety and performance testing.