High-efficiency, 20X25-inch media air cleaner captures significant amount of airborne particles from air circulated through unit. F200E media air cleaner includes cabinet, access door, media filter, and Airwatch Indicator. (W8600B RF AIRWATCH filter change indicator included.) Integral pressure sensors signal when filter change is required based on increased pressure drop threshold at filter. Filter change status is transmitted to wall-mounted RF AIRWATCH Indicator. High efficiency charged-media filter captures particles as small as 0.3 microns. Applicable to all gas, oil and electric forced air furnaces and to compressor cooling up to 5 tons. Mounts in the return air duct. Rugged zinc-coated, roll-formed cabinet resists corrosion and can support weight of residential furnace and evaporator coil. Requires no electrical connections. Mounts in any position. Requires no maintenance except periodic media filter replacement. Quick and easy media filter replacement. Easy upgrade to higher performing media or electronic air cleaner.