Dayton 20UA23 - Louver Damper,Adjustable,36 H x 24 W
Dayton 20UA23 - Louver Damper,Adjustable,36 H x 24 W
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39 In.H 27 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 35 1/2 in, Outside Width 23 1/2 in, Rough Opening Height 36 in, Rough Opening Width 24 in, Louver Maximum Intake 2,700 cfm, Maximum Exhaust 3,862 cfm, Flange Width 1 1/2 in, Free Area 2.4 sq ft, Beginning Point of Water Penetration 1,118 fpm, Maximum Air Velocity 3,000 fpm, Blade Angle 45 Degrees , Material Aluminum, Inside Height 34 1/2 in, Inside Width 21 3/4 in, Number of Blades 7
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