Blast Gate, For Nominal Duct Diameter 16 in, Body Material Grade 304, Body Material Stainless Steel, Overall Length 5 in, Product Type Manual Blast Gate, Weight 21.2 lb, Maximum Pressure Rating 42 in wc, Blade Material Galvanized Steel, Maximum Temperature Rating 1,100 Degrees F, Body Material Thickness 20 ga, Overall Depth 5 in, Overall Width 18 in, Shape Rectangular, Inside Diameter 16 in, Color Silver, Connection Type Clamp Together