Intake Louver, Fixed, Drainable, 36H x 36W, DAYTON, Mfr# 20UA13

39 In.H 39 In.W Drnbl Extrd Alu Intake Louver, Louver Type Stationary Blade, Frame Type Flanged, Frame Depth 4 in, Mounting Style Surface Mount, Outside Height 35 1/2 in, Outside Width 35 1/2 in, Rough Opening Height 36 in, Rough Opening Width 36 in, Louver Maximum Intake 4,548 cfm, Maximum Exhaust 6,504 cfm, Maximum Outside Width 38 1/2 in, Minimum Outside Width 38 1/2 in, Flange Width 1 1/2 in, Free Area 4.4 sq ft, Beginning Point of Water Penetration 1,031 fpm, Maximum Air Velocity 3500 fpm