ducting
american metal 4e 45 4 inch 45 degree elbow 2 wall
features lightweight air insulated double wall metal construction with an inner pipe of reflecting aluminium and an outer pipe of corrosion resistant galvanized steel for strength safety and durability adjustable from 0 degrees to 45 degrees size 4 in dimension 14 95 x 10 02 x 6 51 in item weight 75 lbs sku orgl15497