Louver Flange Kit, Length 56 1/2 in, Width 56 1/2 in, Height 1 1/2 in, Material Extruded Aluminum, For Use With 54 in x 54 in Aluminum Combination Louver Dampers And Drainable Fixed Louvers, Includes Mounting Hardware. This item has been restricted from sale in the following state (s): []