Fire Barrier Devices: Type - Fire Stop Split Duct; Application - Fire Rated Wall and Floor Penetration, New/Old Work; Material - Galvanized Steel w/intumescent lining; Color - Orange, Blue, Yellow or White; Rating - 4 Hours; Size - 3.00"x3.00"x10.50" (76x76x267mm); Approval Listings - UL Classified, FM, ASTM E814 ( UL1497); Additional Information - Intumescent Expansion Temp: 350 F (177 C). Max wall/floor thickness: 9"(22.9cm); Manufacturer Series - EZ-Path 33
Additional Info: Intumescent Expansion Temp: 350 F (177 C). Max wall/floor thickness: 9"(22.9cm)