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The HART COOLEY 012953 is a square ceiling diffuser designed for use in forced-air HVAC systems where uniform, 360-degree air distribution is required. Built from all-steel construction with a bright white finish, this diffuser features a 4-cone step-down face that deflects the air stream in all directions along the ceiling plane. With a nominal face size of 12 inches by 12 inches and an overall installed footprint of 17.5 inches by 17.5 inches, it fits standard ceiling grid and drywall applications. HVAC technicians and sheet metal contractors specify this style of diffuser for residential and light commercial supply air outlets where a clean, low-profile ceiling appearance is needed.
This diffuser is suited for residential and light commercial ceiling supply applications. The 4-cone deflection design promotes horizontal airflow across the occupied zone, reducing drafts and improving comfort in open-plan rooms, offices, and similar spaces. It mounts to a standard round or rectangular duct collar in the ceiling and is typically installed by HVAC technicians or sheet metal contractors during new construction or retrofit projects. The bright white finish coordinates with standard ceiling materials without requiring additional finishing work.
Designed as an OEM-style replacement or new-installation ceiling diffuser for residential and light commercial forced-air supply duct systems using standard square ceiling collar openings.
Installation is performed by a licensed HVAC technician or qualified sheet metal contractor. Power down the air handler or furnace at the disconnect before beginning duct work. The diffuser attaches to the supply duct collar in the ceiling; ensure the collar opening matches the nominal 12 by 12 inch neck size before mounting. Follow local mechanical codes and the current edition of SMACNA duct standards for proper support and sealing of supply outlets.
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