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The RED DEVIL 0841DX F-Seal 181 is a fiber-reinforced water-based duct sealant. It is designed for use in HVAC systems and is UL 181 A-M and B-M certified. This duct sealant is suitable for multiple types of ducts, including metal, fiberglass, and flexible options. The formula is fast-drying and low in volatile organic compounds. It exceeds SMACNA Pressure and Sealing Classes, suitable for high, medium, and low-pressure systems.
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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