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The THERMAFLEX 056310000001 Flex-Vent KM insulated duct is designed for low- to medium-pressure cooling and heating HVAC systems. Suitable for both supply and return sections, it resolves misalignment issues and allows extensions in new or retrofit applications. It features a smooth liner, thermal insulation, a vapor barrier, and a double air seal.
Cost-effective alternative to fitted ducts with R-8 thermal application value and an internal operating temperature range of -20 to 250 degrees Fahrenheit. Meets UL 181, CUL S110, NFPA 90A, and 90B standards.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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