Honeywell FC100A1037 Ultra Efficiency Air Cleaning Filter, 20x25-Inches (MERV-11)

Optimized air cleaning with the FC100A1037

Designed as a replacement media air cleaner, this filter delivers MERV-11 performance with a balance of strong filtration and quiet operation. In homes and small offices, it helps reduce common irritants like dust, pollen, tobacco smoke residues, and pet dander while keeping noise to a minimum.

Key design strengths align with everyday living: a compact 20x25x4.5 inch nominal size and a precise actual size of 19 15/16 x 24 7/8 x 4 3/8 inches, ensuring a proper fit in compatible Honeywell units and cabinets built to house residential equipment.

What makes this filter stand out

• MERV-11 filtration targets a wide range of particles while maintaining airflow efficiency
• Low static pressure drop of about 0.23 in wc at 500 fpm helps preserve furnace and blower performance
• Broad particle coverage across defined sizes: E1 0.3–1.0 μm, E2 1.0–3.0 μm, E3 3–10 μm
• For use with Honeywell media air cleaners such as L96-397, SpaceGard 2200, and 20x25 family models

• Replacement media air cleaner with MERV 11 for ongoing performance
• Sturdy cabinet can support weight of typical residential furnace and evaporator coil

Practical use scenarios include improving air quality during allergy seasons, reducing dust accumulation in living spaces, and supporting a more balanced indoor climate. While not guaranteed to eliminate symptoms, the filtration offers a reliable option to proactively manage indoor air quality in everyday settings.

Whether you are upgrading an existing system or selecting a filter for a new install, the FC100A1037 is designed to pair with compatible Honeywell units, providing a straightforward maintenance path and consistent filtration performance.