24 in 26.75"H-W 4.5"L Alu Intake Shutter Dampr, 25 in x 25 in, Aluminum

Color White Includes Counterbalanced Louvers with Fel For use with Vertical Mounted Supply FansYou may also like 16 in Backdraft Damper / Wall Shutter, 16-1/2 in x 16-1/2 in.