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The NORDIC PURE 21_1/2x23x1ExactCustomM14-6 is a custom-cut, MERV 14 rated pleated air filter designed for residential and commercial HVAC systems including forced-air furnaces and central air conditioners. With an actual size of 21.5 x 23 x 0.75 inches, this filter is manufactured to exact dimensions and sold in a 6-pack. The electrostatically charged filter media captures over 90% of airborne particles between 1 and 10 microns, and 75% to 95% of particles between 0.3 and 1 micron, making it effective against fine dust, pollen, pet dander, mold spores, smoke, bacteria, and virus carriers. The moisture-resistant beverage board frame provides structural integrity, and the media is engineered to resist bacterial and mold growth on the filter surface itself.
This filter is suited for residential and light commercial applications where high-efficiency air filtration is required. It is built for newer, high-efficiency HVAC systems capable of handling MERV 14 filtration and above, including systems that previously used HEPA-style filters. Because MERV 14 filters impose higher static pressure on airflow, the HVAC equipment must be rated to handle this level of filtration resistance. The MERV 14 efficiency rating is comparable to an MPR 2800 rating used by some manufacturers, both evaluated under the same ASHRAE test criteria. Replacement intervals of every 1 to 3 months are typical, with more frequent changes recommended in high-pet or high-allergen environments.
Designed as a custom exact-size replacement filter for residential and commercial forced-air furnace and AC systems with a filter opening measuring 21.5 x 23 x 0.75 inches. The HVAC system must be rated to operate with MERV 14 or higher filtration. Verify the actual opening dimensions before ordering, as this is a custom-made product.
Installation is performed by HVAC technicians or qualified service personnel. Power down the HVAC system at the thermostat and disconnect power at the breaker before replacing the filter. Confirm airflow direction marked on the filter frame aligns with the system airflow direction before seating the filter. Because this is a custom-cut product, measure the actual filter slot opening carefully before ordering, as custom sizes are not returnable once manufactured.
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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