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The NORDIC PURE 20x25x5HM12-4 is a MERV 12 pleated air filter designed for high-efficiency residential and light-commercial HVAC systems that use a deep-media filter slot. Nominal size is 20x25x5 inches with an actual size of 19.88 x 24.88 x 4.38 inches - a critical distinction when ordering deep-media filters, as nominal and actual sizes diverge significantly in this depth range. The filter media is hypoallergenic, antimicrobial, and electrostatic, bonded to a moisture-resistant beverage board frame with a metal mesh support grid. Each pack contains 4 filters. MERV 12 performance is comparable to MPR 1500-1900 rated filters and effectively captures lint, dust, pollen, smoke particles, dust mites, pet dander, mold spores, virus carriers, and other fine particulates.
This filter is suited for residential and light-commercial forced-air systems that accept a deep 5-inch nominal filter, including whole-house media cabinets from Honeywell and Lennox as well as compatible cabinets from Carrier and Bryant that use filters with a 4 3/8-inch actual depth. MERV 12 is appropriate for households with moderate allergy concerns or where above-average air quality is a priority. Always measure the existing filter or the filter housing before ordering, since actual depth varies by manufacturer even within the same nominal size category.
Replaces Honeywell 20x25x4 and other deep-media filters with an actual depth of 4 3/8 inches. Compatible with whole-house media cabinets from Honeywell, Lennox, Carrier, and Bryant that accept filters of this actual size. Confirm actual filter dimensions against your housing before installation.
Filter installation in whole-house media cabinets is typically performed by a licensed HVAC technician or a qualified service professional. Always shut down the air handler or furnace at the disconnect before removing or installing a filter. Check the airflow direction arrow on the filter frame and align it with the direction of airflow toward the blower. Nordic Pure recommends replacing this filter every 3 to 6 months under normal operating conditions, or more frequently during periods of heavy use or home renovation activity.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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