DAYTON 5NKH7 Combo Louver Damper,Adj,23-1/2 H,Alum($502.99Value)

Description

18 In.H 21 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Hat Channel, Outside Height 23 1/2 in, Outside Width 23 1/2 in, Rough Opening Height 24 in, Rough Opening Width 24 in, Louver Maximum Intake 1,005 cfm, Maximum Exhaust...