60 Gravity Vent

60" Gravity Vent,Base 66.5" Sq, Max Intake CFM/Throat Velocity:24,660/853, Damper Size:61" X 61", Material:Steel, Base Dims:60.5"W X 60.5"D, Dims:54.5"H 100"W 108"D, Weight:670 Lbs, In Bulk, Made
Mounting Bracket Bent