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The SEAL-TITE 1374-060806 is a 90-degree angle boot designed for HVAC duct systems that require a directional transition from vertical or horizontal duct runs to a register or grille opening. The boot measures 6 inches by 8 inches at the register face and includes a 2-inch extension, giving installers additional clearance when fitting the boot against finished flooring, subfloor assemblies, or wall cavities. This type of fitting is a standard component in residential and light commercial forced-air systems and is typically installed by HVAC technicians during new construction or duct replacement work.
The 90-degree angle configuration makes this boot well suited for floor or sidewall register applications where the duct approaches from a perpendicular direction. The 2-inch extension adds flexibility in installations where the finished surface sits proud of the framing or where additional drop is needed to align the register face flush with the floor or wall surface. This fitting accommodates a standard 6-inch round or rectangular duct inlet depending on the inlet configuration of this boot style.
Designed as an OEM-style replacement or new-installation fitting for residential and light commercial forced-air HVAC duct systems using standard 6 x 8 inch floor or sidewall register openings.
Installation is typically performed by a licensed HVAC technician. Power down the air handler or furnace at the disconnect or breaker before working inside any duct system. Secure the boot to the duct and framing using sheet metal screws and seal all joints with UL-listed foil tape or duct mastic in accordance with local mechanical codes. Do not leave duct connections unsealed, as air leakage reduces system efficiency.
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