AIRx Filters MERV 13 20x20x5 (Actual:19.63 x 19.88 x 4.38 in) air filter trap potential contaminants found in indoor air. Using electrostatically charged 100% synthetic gradient media, this MERV 13 pleated air filter removes impurities for a cleaner air with typical application air filter for smoke removal, health care facilities, and commercial workspaces. AIRx Filters MERV 13 air filter is efficient in filtering small size particles between 1.0 - 3.0 micron. While it efficiently capturing contaminants, it does not hinder airflow. Built with superior materials such as moisture resistant double-wall beverage board and sturdy 30 gauge galvanized expanded metal grid produces durable air filter. AIRx Filters MERV 13 20x20x5 air filter is capable of working in 180f (82c) continuous service, peak 225f (107c) maximum temperature and resistant to 100% r.h. maximum humidity. Indoor air remains healthy when the air filter is replaced once every three months or sooner if the indoor air includes a large quantity of contaminants.Easy Air Filter Selection to Replace your AC Furnace Air Filter: This AIRx Filters Health MERV 13 20x20x5 air filter can replace the following OEM / Aftermarket Air Filters: Honeywell FC100A1011 FC200E1011 CF200A1024 FC35A1019 and will fit and/or compatible with Honeywell F100B2024 F100F1020 F100F2036 Media Air Cleaner.Disclaimer: All product names, logos, and brands are property of their respective owners. All company, product, and brand names used in this listing are for identification purposes only. Use of these names, logos, and brands does not imply endorsement and DiscountFilters is not associated with or sponsored by the following product names, logos, and brands: [Honeywell]