Louver Wall Opening 30 x 30 In Aluminum

30 In.H 30 In.W Non-Drnbl Alu Modular Louver Louver Type Stationary Blade Frame Type Hat Channel Frame Depth 4 in Mounting Style Flush Mount 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 2 115 cfm Maximum Exhaust 3 022 cfm Maximum Outside Width 29 1/2 in Minimum Outside Width 29 1/2 in Flange Width Not Applicable Free Area 2.8 sq ft Beginning Point of Water Penetration 709 fpm