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The HART COOLEY 1500 12 wht is a white steel drop-in ceiling diffuser designed for supply air distribution in residential and light commercial HVAC systems. Built for flush installation into a standard ceiling grid or cutout, this diffuser features a 24-inch by 24-inch face plate and a 12-inch collar for direct duct connection. HVAC installers and sheet metal contractors choose this style of diffuser for its clean appearance and straightforward fit into lay-in ceiling applications. The drop-in design reduces installation time and maintains a low-profile finished look once seated in place.
This diffuser is suited for suspended ceiling systems where a 24 x 24 inch panel opening is standard. The 12-inch collar accepts round duct connections from the plenum or branch runout above the ceiling. Typical applications include office spaces, retail environments, residential living areas, and any space where a ceiling-mounted supply air outlet is required. Installation is commonly performed by licensed HVAC technicians or mechanical contractors as part of a new construction or renovation air distribution project.
Designed as an OEM-style replacement or new-install supply air diffuser for suspended ceiling systems with 24 x 24 inch panel openings and 12-inch round duct collars.
Installation should be performed by a qualified HVAC technician or mechanical contractor. Power down the air handling unit and close the associated damper before connecting ductwork to the collar. Ensure the ceiling grid opening is clear and free of obstructions before dropping the diffuser into place. Follow local mechanical codes and ASHRAE guidelines for supply air outlet placement and spacing.
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