Hart Cooley 821-20x10 White Steel Commercial Supply Register 20x10 Inch Wall Opening 821 Series

Product Description

The Hart Cooley 821-20x10 is a white steel commercial supply register designed for use in HVAC air distribution systems. It fits a wall opening of 20 inches x 10 inches and has an overall face size of 21-7/8 inches x 11-7/8 inches. This unit is part of the 821 Series, a line built for commercial and light commercial applications where dependable airflow control and a clean appearance are required. HVAC technicians and mechanical contractors rely on supply registers like this one to direct conditioned air into occupied spaces while maintaining a professional finish on walls and ceilings. The 821-20x10 features vertical adjustable face bars, which allow the installer or building occupant to redirect horizontal airflow as needed. A horizontal multi-shutter valve sits behind the face bars and provides volume control, letting the user increase or reduce the amount of air passing through the register. This combination of face bar adjustment and rear damper control makes the unit suitable for zoning applications and comfort balancing in commercial buildings, offices, schools, retail spaces, and similar environments. The all-steel construction gives the register durability in high-traffic areas where plastic alternatives may not hold up over time. The bright white powder finish blends with standard commercial wall and ceiling colors and resists everyday wear. Four screw holes, one in each corner, make installation straightforward and secure against the wall surface. The 821-20x10 is a direct-fit replacement for existing 821 Series openings and is compatible with standard duct collars sized for a 20 inch x 10 inch wall opening. HVAC professionals searching for commercial supply air grilles, steel adjustable registers, or Hart Cooley 821 Series parts will find this unit meets typical commercial specification requirements.

• All-steel construction for long-term durability in commercial installations
• Vertical adjustable face bars plus horizontal multi-shutter volume damper for precise airflow control
• Bright white finish with four corner screw holes for clean, secure wall mounting

Product Highlights

The Hart Cooley 821-20x10 delivers reliable airflow control and a clean white finish in a durable all-steel body sized for a 20 inch x 10 inch wall opening, making it a dependable choice for commercial HVAC supply air applications.

Product Information

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 821-20x10

Technical Specifications

• Product Type: Supply Register
• Series: 821
• Wall Opening Width: 20 inches
• Wall Opening Height: 10 inches
• Wall Opening Size: 20 inches x 10 inches
• Overall Face Size: 21-7/8 inches x 11-7/8 inches
• Material: Steel
• Color: White
• Number of Mounting Holes: 4
• Application: HVAC