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The SEAL-TITE 1373L-021006 is a left end boot fitting designed for duct distribution systems in residential and light commercial HVAC applications. This fitting connects a rectangular duct run to a register or grille at the left end of a run, incorporating a 2 inch extension to accommodate varied plenum or floor depths. With a face opening of 2 inches by 10 inches and a 6 inch depth, it provides a clean, fitted transition that helps maintain airflow efficiency at the terminal end of a supply duct. HVAC installers and sheet metal mechanics select this boot when layout requires a left-hand termination with added depth clearance.
This left end boot is suited for new construction and retrofit supply duct systems where floor, wall, or ceiling registers are installed at the end of a rectangular duct run. The 2 inch extension is particularly useful when the boot must bridge a subfloor gap or reach a register frame set below the joist plane. It is intended for low-pressure residential or light commercial forced-air systems and is installed by licensed HVAC technicians or sheet metal contractors.
Designed as an OEM-style sheet metal fitting for residential and light commercial forced-air supply duct systems using 2 inch by 10 inch rectangular duct with left-end register terminations.
Installation is performed by licensed HVAC technicians or qualified sheet metal mechanics. Shut down the air handling system and confirm the unit is de-energized before cutting into or modifying any duct section. Secure the boot to the duct with sheet metal screws and seal all joints with UL-listed foil tape or mastic per local mechanical code requirements. Verify register frame dimensions match the 2 inch by 10 inch face opening before fastening to the finished surface.
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