Red Devil 0841DX F-Seal 181 Duct Seal, Fiber Reinforced Water Based Duct Sealant, 1 Gallon, Gray, Made in USA
Product information
$23.79
Product price and availability are accurate as of January 21, 2026 at 12:22pm and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Additional details
Features
SUPERIOR SEALING: Fiber-reinforced formula ensures leak-free HVAC systems, improving energy efficiency and performance VERSATILE APPLICATION: UL 181 A-M & B-M certified for use on all types of HVAC ductwork, including metal, fiberglass, and flexible ducts INDOOR/OUTDOOR DURABILITY: Weather-resistant sealant withstands various conditions, making it ideal for both interior and exterior use FAST-DRYING & LOW VOC: Quick application and reduced drying time, with low volatile organic compounds for safer use in sensitive environments EXCEEDS INDUSTRY STANDARDS: Surpasses all SMACNA Pressure and Sealing Classes, ensuring top-quality performance for your HVAC systems