Resideo by HoneyWell FC100A1037 MERV Media Air Filter - 20x25x5 11

The Resideo by Honeywell FC100A1037 is a high-efficiency pleated media air filter designed for whole-home air filtration systems. This genuine replacement filter measures 20" x 25" with a nominal 5" depth and an actual thickness of 4-3/8", providing maximum surface area for superior particle capture.

Key Features:

• MERV 11 rating effectively captures dust, pollen, mold spores, pet dander, and other airborne particles
• Pleated media design provides extended filter life and improved airflow compared to standard 1" filters
• Genuine Resideo/Honeywell replacement ensures proper fit and performance
• Actual dimensions: 20" x 25" x 4-3/8" thick
• Direct replacement for part numbers 203720 and FC35A1027

This media filter is compatible with Honeywell and Resideo whole-home air cleaner cabinets that accommodate 20x25x5 filters. The MERV 11 filtration rating strikes an ideal balance between particle capture efficiency and system airflow, making it suitable for most residential HVAC systems. Regular replacement every 6-12 months helps maintain optimal indoor air quality and system efficiency.