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The AIR FLOW PRODUCTS 5361206 is a ceiling diffuser boot with an integrated rail, designed to connect ductwork to a ceiling diffuser in residential and light commercial HVAC systems. The boot features a 6x12 inch rectangular opening and a 6 inch round collar for duct connection. This fitting serves as the transition point between the supply duct and the ceiling diffuser, directing conditioned air into the occupied space. HVAC technicians and sheet metal installers fit this boot during new construction rough-in or when replacing damaged existing boots during a system retrofit.
This ceiling diffuser boot is suited for residential and light commercial forced-air supply systems where a ceiling-mounted diffuser is the terminal air distribution device. The integrated rail simplifies diffuser attachment and alignment at the ceiling plane. The 6x12 inch face opening accommodates standard 6x12 ceiling diffusers, and the 6 inch collar connects directly to round supply branch duct. It is a common fitting in trunk-and-branch and radial duct system layouts.
Designed as an OEM-style replacement or new-installation fitting for ceiling diffuser boots used in residential and light commercial forced-air supply duct systems with a 6x12 inch diffuser opening and 6 inch round branch duct.
Installation is typically performed by a licensed HVAC technician or qualified sheet metal installer. Shut down the air handling system and confirm the unit is de-energized before cutting into existing ductwork or securing the boot at the ceiling opening. The boot should be secured to ceiling framing and sealed at the collar with listed duct tape or mastic sealant per local mechanical code requirements. Follow applicable SMACNA standards and local jurisdiction guidelines for duct system installation.
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