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The KOCH FILTER 24X25X1 is a disposable flat panel air filter sized 24 inches by 25 inches by 1 inch, designed for residential and light commercial HVAC systems that require standard flat panel filtration. Built on the EZ II platform, this filter captures basic airborne dust, lint, and larger particulates to protect HVAC equipment and maintain airflow through the air handler or furnace. It is a single-use, panel-style filter intended for routine replacement by HVAC technicians or maintenance personnel as part of a standard preventive maintenance cycle.
This filter is suited for forced-air heating and cooling systems where a 24 by 25 by 1 inch flat panel filter is specified. Typical installation locations include return-air grilles, filter racks, and air handler cabinets in residential homes and light commercial buildings. Its flat panel construction supports low resistance airflow, making it appropriate for systems designed around minimal static pressure drop at the filter position.
Designed as an OEM-style replacement flat panel air filter for forced-air HVAC systems requiring a 24 by 25 by 1 inch disposable panel filter.
Installation is performed by HVAC technicians or qualified maintenance personnel. Always shut down the air handler or furnace at the disconnect or thermostat before removing the old filter to prevent unfiltered air from passing through the system. Note the airflow direction arrow printed on the filter frame and orient the new filter so the arrow points toward the blower. Follow the equipment manufacturer's recommended filter replacement interval, or inspect the filter monthly and replace when loaded.
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