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The SOUTHWARK METAL 59F6148SD is a 14 x 6 x 8 inch register boot with flange, designed for use in residential and light commercial forced-air duct systems. This fitting connects a rectangular duct run to a floor, wall, or ceiling register opening, providing a secure, flush-mount transition point. The integrated flange holds the register grille in place and creates a clean finished appearance at the termination. Sheet metal register boots are a standard component in HVAC duct fabrication and are typically installed by HVAC technicians or sheet metal workers during new construction or system retrofit work.
The 59F6148SD is sized at 14 x 6 x 8 inches, making it suitable for standard residential duct branch runs where a rectangular-to-register transition is required. The flanged design accommodates common register grilles and diffusers. This boot is appropriate for use in supply air applications within forced-air heating and cooling systems, including gas furnace and central air conditioning duct networks.
Designed as an OEM-style sheet metal fitting for use in residential and light commercial forced-air supply duct systems requiring a rectangular register boot with flange at a 14 x 6 x 8 inch opening.
Installation is typically performed by a licensed HVAC technician or journeyman sheet metal worker. Shut down the air handling unit and confirm the system is de-energized before beginning ductwork modifications. The boot should be secured to the duct system using sheet metal screws and sealed with UL 181-rated tape or mastic per local mechanical code requirements. Follow applicable SMACNA duct construction standards and local building codes for proper support and fastening.
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