Intake Louver, Fixed, Drainable, 30H x 42W, DAYTON, Mfr# 20UA60

33 In.H 45 In.W Drnbl Extrd Alu Intake Louver, Louver Type Stationary Blade, Frame Type Flanged, Frame Depth 4 in, Mounting Style Surface Mount, Outside Height 29 1/2 in, Outside Width 41 1/2 in, Rough Opening Height 30 in, Rough Opening Width 42 in, Louver Maximum Intake 4,703 cfm, Maximum Exhaust 6,726 cfm, Maximum Outside Width 44 1/2 in, Minimum Outside Width 44 1/2 in, Flange Width 1 1/2 in, Free Area 4.5 sq ft, Beginning Point of Water Penetration 1,031 fpm, Maximum Air Velocity 3500 fpm