33 In.H 33 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 29 1/2 in, Outside Width 29 1/2 in, Rough Opening Height 30 in, Rough Opening Width 30 in, Louver Maximum Intake 2,738 cfm, Maximum Exhaust 3,916...
33 In.H 33 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 29 1/2 in, Outside Width 29 1/2 in, Rough Opening Height 30 in, Rough Opening Width 30 in, Louver Maximum Intake 2,738 cfm, Maximum Exhaust 3,916...