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The IMPERIAL MFG GROUP USA INC GV0665-C is a 30-gauge galvanized steel register boot designed to transition rectangular duct to a round collar for supply air delivery in residential and light commercial HVAC systems. The boot measures 3.25 inches by 10 inches on the rectangular inlet and transitions to a 6-inch round collar on the outlet. The end-center configuration positions the round collar at the end of the rectangular section, making it suitable for floor, ceiling, and sidewall register applications. HVAC installers and sheet metal contractors use this fitting to connect branch ductwork to a supply register or grille. The galvanized steel construction resists corrosion in typical conditioned-air environments.
This register boot is used in forced-air heating and cooling systems where a rectangular branch duct must terminate at a round collar for connection to a supply register. The end-center design is a common configuration in residential new construction and retrofit duct installations. It is typically installed in wood-framed floor or ceiling cavities, or in furred-down ceiling drops, where the branch duct runs in the same direction as the register opening. Units are packaged in quantities of six, making this fitting practical for multi-room rough-in work.
Designed as an OEM-style sheet metal fitting for residential and light commercial forced-air HVAC duct systems requiring a 3.25-inch by 10-inch rectangular to 6-inch round end-center register boot transition.
Installation is typically performed by licensed HVAC technicians or sheet metal contractors in accordance with SMACNA duct construction standards and local mechanical codes. Power down the air handling unit before accessing or modifying any duct section. Secure the boot to the branch duct using sheet metal screws and seal all joints with UL-listed foil tape or duct mastic to maintain system efficiency and prevent air leakage. Do not compress or restrict the round collar opening during framing or drywall installation.
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