Nordic Pure 20x25x5HM8-4 Merv 8 Air Filter 4 Pack

Product Description

The NORDIC PURE 20x25x5HM8-4 is a MERV 8-rated pleated air filter designed for residential and light commercial forced-air heating and cooling systems. It ships in a 4-pack and carries a nominal size of 20x25x5 inches with an actual size of 19.88 x 24.88 x 4.38 inches - a common variance in deep-media filters that makes measuring the existing filter or housing essential before ordering. The filter media is hypoallergenic, antimicrobial, and electrostatic, bonded to a metal mesh support grid for pleat stability. The frame is a moisture-resistant beverage board construction. Each pass captures lint, household dust, pollen, dust mites, pet dander, bacteria, and mold spores at a capture efficiency equivalent to an MPR 800 rating.

This filter is suited for residential furnaces and air handlers that accept a deep 5-inch nominal filter slot with an actual depth near 4.38 inches. It replaces Honeywell 20x25x4 filters and is also compatible with Lennox, Carrier, and Bryant systems that use the same nominal 20x25x5 housing. It outperforms standard fiberglass, poly disposable, and non-electrostatic washable filters in particle capture efficiency. Nordic Pure recommends replacing this filter every 3 to 6 months, though heavier dust loads, pets, or ongoing renovation work may shorten that interval.

Key Features

• MERV 8 filtration captures dust, pollen, pet dander, dust mites, mold spores, and bacteria
• Actual size 19.88 x 24.88 x 4.38 inches fits nominal 20x25x5 housings with a standard 4.38-inch actual depth
• Hypoallergenic, antimicrobial, and electrostatic pleated media inhibits bacterial and mold growth
• Metal mesh support grid bonded to pleats prevents media collapse under airflow
• Heavy-duty moisture-resistant beverage board frame
• Made in the USA; equivalent to MPR 800

Compatibility

Replaces Honeywell 20x25x4 deep-media filters and fits Lennox, Carrier, and Bryant systems that use a nominal 20x25x5 housing with an actual depth of approximately 4.38 inches. Always verify the actual dimensions of your existing filter or housing before ordering, as nominal sizing varies by manufacturer.

Installation Notes

Filter replacement is typically performed by an HVAC technician or a knowledgeable homeowner. Always shut down the air handler or furnace at the disconnect or thermostat before removing the old filter to prevent unfiltered air from entering the system. Confirm airflow direction arrows on the new filter frame align with the direction of airflow toward the blower before closing the filter door or access panel. Dispose of the used filter in a sealed bag to contain captured particulates.