20" x 25" Air Filter Grille, White

Product Overview

The Hart & Cooley 043420 Return Air Filter Grille is a 20 x 25-inch fixed-blade grille designed for professional HVAC return air systems requiring filtered air intake. As part of the 659 Series, this grille is engineered with 20° fixed deflection blades and 1/3-inch spacing to maintain balanced airflow and reduced static pressure. The steel construction and hinged face design allow for efficient filter access and maintenance. Finished in bright white baked enamel, it delivers a durable and clean installation suitable for commercial and residential mechanical environments.

Technical Specifications

• Manufacturer: Hart & Cooley
• Model Number: 043420
• Series: 659
• Description: Return Air Filter Grille – Fixed Blade Type
• Reference Number: 180980
• Nominal Size: 20 in x 25 in (508 mm x 635 mm)
• Duct Opening Size: 19-15/16 in Height (506 mm)
• Overall Length: 22-5/8 in (575 mm)
• Deflection Angle: 20° fixed blade
• Blade Spacing: 1/3 in (8.5 mm)
• Blade Orientation: Horizontal fixed blades for return airflow
• Material: Heavy-gauge formed steel
• Finish: Bright white baked enamel
• Color: Bright white
• Mounting Type: Surface-mounted, wall or ceiling installation
• Filter Compatibility: Accepts standard 1-inch nominal filters (filter not included)
• Access Mechanism: Hinged grille face for filter replacement
• Airflow Function: Return air filtration and intake
• Performance Characteristics:
  • 20° fixed blade deflection for uniform air return
  • 1/3-inch spacing for maximum free area and efficient airflow
  • Rigid frame minimizes vibration and noise
• Applications:
  • Commercial and residential HVAC return air systems
  • Ceiling or wall return installations
  • Filtered intake for air handling and ventilation systems
• Installation Requirements:
  • Mount directly to duct return opening with standard fasteners
  • Ensure hinge clearance for filter access and removal
  • Verify alignment with duct flange for proper sealing
• Operating Environment: Indoor, conditioned air return applications
• Compliance and Standards:
  • Meets SMACNA and ASHRAE air distribution standards
  • Complies with ANSI/NFPA 90A for HVAC air duct systems
  • Manufactured under ISO 9001:2015 certified quality management
• Maintenance: Clean grille surface periodically and replace filters as required by system design
• Service Life: Engineered for long-term performance under standard HVAC operating conditions
• Country of Manufacture: United States

Summary

The Hart & Cooley 043420 Return Air Filter Grille (659 Series) is a 20 x 25-inch steel return air component featuring 20° fixed horizontal blades at 1/3-inch spacing. Designed with a hinged face for filter access and finished in bright white baked enamel, it provides durable, low-resistance airflow performance for professional HVAC return air installations.