Red Devil 0841DX F-Seal 181 Fiber Reinforced Water Based Duct Sealant, 1 Gallon, Gray

Red Devil 0841DX F-Seal 181 Water Based Duct Sealant is a high quality, fiber reinforced duct sealant/mastic that meets UL 181 A-M & B-M standards.

It's perfect for all types of HVAC ductwork and can be used by both professional contractors and DIYers.

Made in the USA, this product is built to last and provides long-lasting protection against air leaks and moisture damage.

With its easy application and fast curing time, you'll be able to finish your project quickly and efficiently.

Don't settle for anything less, choose Red Devil 0841DX F-Seal 181 Water Based Duct Sealant for all your duct sealing needs.