Blast Gate, For Nominal Duct Diameter 6 in, Inlet Diameter 6 In., Body Material Aluminum, Overall Length 5 3/4 in, Product Type Manual Blast Gate, Weight 3.75 lb, Maximum Pressure Rating 42 in wc, Blade Material Galvanized Steel, Maximum Temperature Rating 390 Degrees F, Body Material Thickness 22 ga, Overall Depth 5 3/4 in, Overall Width 7 in, Shape Rectangular, Inside Diameter 6 in, Color Silver, Connection Type Clamp Together