Honeywell FC100A1011 20x20x4 MERV 11 Furnace & AC Air Filter

Keep your HVAC system performing at its best with the Honeywell FC100A1011 20x20x4 MERV 11 Furnace & AC Air Filter. Designed to capture airborne particles while maintaining excellent airflow, this high-efficiency pleated filter helps improve indoor air quality and protects your heating and cooling equipment from dust buildup.

The MERV 11 filtration media effectively traps common household contaminants, including dust, pollen, mold spores, lint, pet dander, and other airborne particles. Regular filter replacement helps extend the life of your HVAC system while promoting cleaner, healthier air throughout your home.

Key Features

• Genuine Honeywell FC100A1011 replacement air filter
• Nominal size: 20 x 20 x 4 inches
• MERV 11 high-efficiency filtration
• Helps capture dust, pollen, pet dander, mold spores, and lint
• Maintains strong airflow for optimal HVAC performance
• Quick and easy installation
• Suitable for residential furnace and air conditioning systems

Compatible Part Numbers

• Honeywell 203721
• Honeywell FC35A1019
• Honeywell HFC100A1011

Compatible Models

• Honeywell F100
• Honeywell F150
• Honeywell F25
• Honeywell F35

Note: Please verify your existing filter model number and dimensions before ordering to ensure compatibility with your HVAC system.