16 in 19"H-W 5.75"L Alu Wall Backdraft Dampr, 16-1/2 in x 16-1/2 in, Aluminum

Includes Prepunched Mounting Holes; Felt Series 556 For use with Vertical Mounted Exhaust FansYou may also like Dayton Blade,Fan,Propeller Dia.12" 2C842.