Nordic Pure 20x25x4M7-6 Pleated Merv 7 Air Filter 6 Pack

Product Description

The NORDIC PURE 20x25x4M7-6 is a pleated MERV 7 air filter sold in a 6-pack, designed for residential and light-commercial forced-air HVAC systems. The filter uses electrostatically charged synthetic media to capture airborne particles ranging from 3.0 to 10.0 microns, including household dust, pollen, mold spores, pet dander, and bacteria. The nominal size is 20x25x4, with an actual size of 19.5 x 24.5 x 3.63 inches. The frame is a heavy-duty, moisture-resistant beverage board, and a metal mesh support grid is bonded to the pleats to maintain media integrity under airflow. HVAC technicians and service pros can stock multiple units from a single order with the 6-pack format.

This filter is intended for residential and light-commercial gas furnaces, heat pumps, and central air conditioning systems that accept a nominal 20x25x4 filter slot. It is rated MERV 7, equivalent to MPR 600, making it a step up from standard fiberglass or poly disposable filters without creating excessive static pressure in lower-efficiency blower systems. A filter change interval of every 3 to 6 months is typical under normal operating conditions, though high-dust or renovation environments may require more frequent replacement. Note: the actual depth is 3.63 inches. If the existing unit holds a filter with a 4.375-inch actual depth, such as certain Honeywell or Lennox 20x25x4 models, the 20x25x5 variant with a 4.375-inch actual depth should be ordered instead.

Key Features

• MERV 7 electrostatically charged synthetic media captures particles 3.0 to 10.0 microns, including dust, pollen, mold spores, and pet dander
• Actual size 19.5 x 24.5 x 3.63 inches - verify fit before ordering, especially in units requiring a 4.375-inch actual depth
• Heavy-duty, moisture-resistant beverage board frame resists sagging in humid duct environments
• Metal mesh support grid bonded to pleats maintains filter geometry under sustained airflow
• Antimicrobial, hypoallergenic filter media inhibits bacterial and mold growth on the filter surface
• Made in the USA; rated equivalent to MPR 600

Compatibility

Designed as an OEM-style replacement for residential and light-commercial forced-air systems accepting a nominal 20x25x4 filter. Not a direct fit for units requiring a 4.375-inch actual depth filter, such as certain Honeywell and Lennox 20x25x4 applications - use the 20x25x5 (4.375-inch actual depth) variant for those installations.

Installation Notes

Installation is typically performed by HVAC technicians or qualified service personnel. Always shut down the air handler or furnace at the disconnect or thermostat before removing the old filter or inserting a new one. Confirm the actual filter slot dimensions against the actual size of 19.5 x 24.5 x 3.63 inches before installation - nominal sizing on filter slots and filter products frequently differs by manufacturer. Dispose of the used filter in a sealed bag to contain captured particulates.