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Hardcast
Ul 181bm Gray 1 Gallon Duct Sealer
Part #DUCT-SEAL 321
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- Brand: Hardcast
- 1 Gallon Duct Sealer
Duct Sealants
Duct-Seal 321
- All purpose industrial grade duct sealant
- Suitable for residential use
- For metal duct, fiberglass duct board, duct fabric, and flex duct.
- Includes UV inhibitors and built-in fiber reinforcement
- Non-toxic, water-based, solvent free