12" X 6" ALUMINUM/WHITE ADJUSTABLE VERTICAL BLADES W/MULTI-SHUTTER

12" X 6" ALUMINUM/WHITE ADJUSTABLE VERTICAL BLADES W/MULTI-SHUTTER, EXTRUDED ALUMINUM CONSTRUCTION, VERTICAL FRONT BARS, PIVOTED BARS FOR EASY POSITIVE SETTING, LEVER-OPERATED MULTI-SHUTTER VALVE, SINGLE ROW OF INDIVIDUALLY ADJUSTABLE FACE BARS, HORIZONTAL VALVE BLADES, ROUGH OPENING DIMS:6"W X 12"L, DIMS:1 3/4"H X 7 3/4"W X 13 3/4"L, WEIGHT:1 LB 8 OZ, BULK, MADE IN USA.