12" X 24" Air Filter Grille, White

Product Overview

The Hart & Cooley 043403 Return Air Filter Grille is a 12 x 24-inch wall- or ceiling-mounted grille designed for filtered return air applications in commercial and residential HVAC systems. Part of the 659 Series, this grille combines efficient airflow performance with a clean, low-profile design. Constructed with 20° fixed deflection blades and 1/3-inch blade spacing, the grille ensures uniform air distribution and easy filter access for maintenance. The durable steel construction with a bright white enamel finish provides corrosion resistance and long-term service in demanding environments.

Technical Specifications

• Manufacturer: Hart & Cooley
• Model Number: 043403
• Series: 659
• Description: Return Air Filter Grille – Fixed Blade
• Reference Number: 1820699
• Nominal Face Size: 12 in x 24 in (305 mm x 610 mm)
• Duct Opening Size: 11-15/16 in Height (303 mm)
• Overall Length: 14-5/8 in (372 mm)
• Deflection Angle: 20° fixed blade design
• Blade Spacing: 1/3 in (8.5 mm)
• Blade Orientation: Fixed horizontal deflection blades for return airflow
• Construction: Formed steel frame and blades
• Finish: Bright white baked enamel coating
• Mounting Type: Surface-mount installation for wall or ceiling applications
• Filter Access: Hinged face panel for quick filter removal and replacement
• Filter Compatibility: Accepts standard 1-inch nominal filters (not included)
• Airflow Function: Return air – filtered intake
• Performance Characteristics:
  • Fixed 20° blade deflection promotes consistent airflow into return plenum
  • Evenly spaced blades maintain low static pressure drop
  • Hinged grille face allows convenient maintenance without removing the frame
• Application:
  • Commercial HVAC return air systems
  • Residential and institutional air handling systems
  • Ceiling or sidewall filtered air return installations
• Installation Requirements:
  • Install directly to duct opening using standard fasteners
  • Ensure alignment with filter rack for secure fit
  • Verify face frame clearance for full filter access
• Operating Environment: Indoor HVAC air return systems
• Material Finish Standard: Complies with SMACNA and ASHRAE air distribution guidelines
• Maintenance: Clean grille face and replace filters at regular service intervals per system design
• Color: Bright white
• Compliance:
  • Manufactured to comply with ANSI/NFPA and ASHRAE ventilation standards
  • Produced under ISO 9001-certified quality management
• Country of Manufacture: United States

Summary

The Hart & Cooley 043403 Return Air Filter Grille (659 Series) is a 12 x 24-inch steel assembly featuring 20° fixed blades at 1/3-inch spacing for uniform return airflow. Designed for 11-15/16-inch duct openings, this grille includes a hinged face for easy filter access and is finished in bright white enamel for long-lasting performance in commercial and residential HVAC systems.