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The Hart Cooley 24-8 is a Series 24 step-down square ceiling diffuser built for commercial and residential HVAC air distribution. Constructed entirely from steel, this diffuser is designed to fit an 8 inches by 8 inches wall opening and features an overall face size of 13.5 inches by 13.5 inches. The step-down face design deflects the air stream 360 degrees around the diffuser, promoting even air distribution across the room. This type of ceiling diffuser is a standard component in forced-air HVAC systems where balanced airflow and clean aesthetics are both priorities. HVAC technicians and contractors use ceiling diffusers like the 24-8 to terminate supply air ductwork at the ceiling plane while controlling the direction and spread of conditioned air. The bright white finish blends with standard ceiling tile and drywall installations, making it a practical choice for offices, retail spaces, classrooms, and residential applications. The all-steel construction provides durability over years of service in high-cycle HVAC environments. Unlike plastic diffusers, a steel unit resists warping and holds its shape under temperature changes and air pressure fluctuations. The 24-8 is part of Hart Cooley's established Series 24 lineup, which is recognized in the trade for consistent sizing, straightforward installation, and reliable performance. This diffuser connects to standard square duct collars and drop-in ceiling grid systems. Proper diffuser selection helps maintain target airflow velocity and comfort levels in conditioned spaces. The 8 inches opening size suits medium-volume supply air applications in light commercial and residential HVAC layouts.
The Hart Cooley 24-8 Series 24 ceiling diffuser delivers 360-degree air deflection and all-steel construction in a clean white finish, sized for an 8 inches by 8 inches duct opening with a 13.5 inches by 13.5 inches face plate.
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