DAYTON 4FZH2 Louver,Wall Opening 48x48In,Galvannealed
48 In.H 48 In.W Non-Drnbl GSteel Modulr Louver, Louver Type Stationary Blade, Frame Type Hat Channel, Frame Depth 4 in, Mounting Style Flush Mount, Outside Height 47 1/2 in, Outside Width 47 1/2 in, Rough Opening Height 48 in, Rough Opening Width 48...
