The AAF Flanders EZ Flow II 25 in. H x 20 in. W x 1 in. D spun fiberglass air filter is designed for reliable performance in residential HVAC systems and appliances. This panel-style fiberglass air filter 20x25x1 helps capture dust, lint, and airborne particles, supporting cleaner indoor air and improved furnace efficiency. The blue air filter is compatible with most standard furnace and AC units that require a 20x25x1 filter size. Manufactured by Flanders, this filter features a sturdy construction and a MERV 4 rating, making it ideal for basic filtration needs. Each package contains 12 new filters, ensuring you have replacements on hand for regular maintenance. The filter measures 25.13 in. H x 20.13 in. L x 10.63 in. W, with a lightweight design for easy installation and removal. No batteries are required. Choose this fiberglass HVAC filter for dependable air filtration and to help extend the life of your heating and cooling system.