This Imperial End Register Boot is used to create a right-angle, center-end transition from 6-in round pipe or insulated flexible duct to a 4-in x 10-in register or grille. The design of this end boot is ideal for situations where the opening in the floor runs parallel to the floor joists and header. Made from 30-gauge galvanized steel for rust resistance and long-lasting durability, this end register boot is easy to install with sheet metal screws (sold separately) for a secure fit. It is suitable for use in most heating, venting and air conditioning applications. Creates a right-angle transition from a round pipe to a register or grille Connects to 6-in round pipe or insulated flexible duct Constructed from 30-gauge galvanized steel for durability and rust resistance Installs with sheet metal screws (not included) Suitable for use in most HVAC applications Fits 4 inch x 10 inch register or grille Sub Type: End register Type: Duct boot Depth (Inches): 10 Diameter End 1 (Inches): 6 Diameter End 2 (Inches): 0 Diameter End 3 (Inches): 0 Length (Inches): 13.3 Width (Inches): 4 Crimped: No Damper Included: No Flange Included: No Gauge: 30 Insulated: No Material: Galvanized steel Package Quantity: 1 Shape: Round Warranty: 1-year limited CA Residents: Prop 65 Warning(s): No Safety Listing: Not safety listed UNSPSC: 40141900