Roof Curb, For Fan Base Size 30 in, Curb Height 12 in, Curb Inside Width 25 1/2 in, Curb Outside Width 28 1/2 in, Material Steel, Standards UL 705, For Use With 30 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General Exhaust, Curb Inside Length 25.5, Curb Outside Length 28 1/2 in, Curb Shape Square, Damper Tray Size 23 in x 23 in, Features Flashing Flange, One Welded Corner, Wood Nailer, Finish Galvanized, Flashing Flange Width 2 in.
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