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The SEAL-TITE 1370-061406 is a straight duct boot fitting designed for residential and light commercial HVAC duct distribution systems. This boot transitions from round trunk or branch duct connections to a rectangular register opening measuring 6 inches by 14 inches, with an 8-inch depth and an integrated 2-inch extension that provides additional clearance during installation. Sheet metal duct boots of this type are installed by HVAC technicians when terminating supply or return air duct runs at floor, wall, or ceiling register locations. The extended collar simplifies alignment with finished flooring or drywall surfaces.
This straight boot is suited for supply air applications in forced-air residential systems where a 6-by-14-inch register opening is specified. The 2-inch extension makes it a practical choice in new construction and remodel scenarios where the duct rough-in terminates short of the finished surface plane. Installers working with standard 6-inch round-to-rectangular transitions will find this fitting appropriate for typical trunk-and-branch layout designs.
Designed as an OEM-style replacement and new-installation fitting for forced-air HVAC duct systems requiring a straight boot at a 6 inch by 14 inch register opening.
Installation should be performed by a licensed HVAC technician in accordance with local mechanical codes and SMACNA duct construction standards. Power down the air handler or furnace at the disconnect before working in the duct system. Secure the boot to the duct branch and framing using sheet metal screws and approved duct sealant or mastic at all joints to meet air-tightness requirements. Do not use the extension collar as the sole structural support point for the fitting.
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