Versatile Duct Flex Duct 12 inchx25 toes. Code Compliance: UL 181, SBCC, BOCA, NFPA 90A and 90B and HUD 3280.715(b)A double lamination of difficult polyester which encapsulates a metal cord helix bureaucracy the air-tight internal center. The sleek internal center and fiberglass insulation are bolstered with scrim, and sheathed in a black, heavy-responsibility polyethylene jacket which complies with the HUD necessities for outside cell house use.The product is designed for use as: a provide and go back duct with self-contained A/C, air duct gadget and or department duct with upflow or downflow HVAC. R – Ranking: 4.2. Thickness 1-1/four inch.
ATCO 04002512 Black Insulated 12″X25′ Flex Duct