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The SOUTHWARK METAL 27R_6X6X6 is a straight rectangular-to-round sheet metal duct boot designed for connecting rectangular duct openings to round collar outlets in residential and light commercial HVAC distribution systems. Fabricated from hot-dipped galvanized steel, this boot offers lasting corrosion resistance in typical air-handling environments. The rectangular inlet measures 6 inches by 6 inches, and the round outlet collar is 6 inches in diameter. HVAC installers use this fitting to transition from trunk duct or plenum to a round run-out feeding a floor, wall, or ceiling register. It meets ACCA and SMACNA standards for sheet metal duct construction.
This duct boot is suited for new construction and retrofit installations where a straight-angle transition from rectangular duct to a round collar is required. The straight configuration makes it appropriate for installations where the register or diffuser is positioned directly in line with the duct run, such as floor registers in wood-framed platforms or ceiling applications with limited offset clearance. It is sized for standard 6-inch round duct and a 6-inch by 6-inch rectangular opening, making it a common fit in residential forced-air systems.
Designed as an OEM-style sheet metal fitting for residential and light commercial forced-air HVAC systems requiring a straight rectangular-to-round duct transition at a 6-inch by 6-inch opening with a 6-inch round outlet.
Installation should be performed by a licensed HVAC technician in accordance with SMACNA duct construction standards and local mechanical codes. Shut down the air handling unit and isolate the duct system before cutting into existing ductwork or plenum surfaces. Secure the boot with sheet metal screws and seal all joints with listed duct sealant or UL 181-rated tape to meet leakage requirements. Do not use this fitting for exhaust, combustion air, or non-HVAC applications.
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