Louver Damper, Adjustable, 18H x 48W DESCRIPTION_UPDATE Sign Legend Style Symbol and

Sign Legend Style Symbol and Text graingerSKU: 473M46

mongo_id: 65bbe8919a749db82279b75d

mongo_id: 65bbe6893aaddbd5a90383f7

Sign Legend Style Text graingerSKU: 472R52

Louver Damper, Adjustable, 18H x 48W DESCRIPTION_UPDATE Sign Legend Style Symbol and20. 5 In. H 50. 5 In. W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 17 1 2 in, Outside Width 47 1 2 in, Rough Opening Height 18 in, Rough Opening Width 48 in, Louver Maximum Intake 2,337 cfm, Maximum Exhaust 3,341 cfm, Flange Width 1 1 2 in, Free Area 2. 1 sq ft, Beginning Point of Water Penetration 1,118 fpm, Maximum Air Velocity 3,000 fpm, Blade Angle 45 Degrees , Material Aluminum, Inside Height 16 1 2