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The NORDIC PURE 18x24x1M14-4 is a MERV 14 pleated air filter sold in a 4-pack, designed for residential and commercial HVAC systems that require high-efficiency particle capture. Each filter measures 17.5 x 23.5 x 0.75 inches actual size with a nominal size of 18x24x1. The electrostatically charged filter media captures airborne dust, pollen, mold spores, pet dander, smoke particles, bacteria, and virus carriers. The heavy-duty, moisture-resistant beverage board frame holds its shape through the full service life. These filters are made in the USA and carry a MERV 14 efficiency rating, equivalent to MPR 2800.
MERV 14 filtration is suited for environments where indoor air quality is a priority, including homes with allergy or asthma sufferers, households with pets, and commercial spaces requiring higher-grade particulate control. Because MERV 14 filters impose greater airflow restriction than lower-rated filters, the HVAC system must be rated to handle MERV 14 or above before installation. These filters are particularly compatible with newer high-efficiency systems designed to accept HEPA-grade filtration. Filter replacement every 1 to 3 months is recommended, with more frequent changes advised in high-pet or high-dust environments.
Designed for residential and commercial HVAC systems with filter slots sized for nominal 18x24x1 filters. The HVAC system must support MERV 14 or higher-rated filters to maintain adequate airflow. Verify the exact filter slot dimensions against the actual size of 17.5 x 23.5 x 0.75 inches before installation.
HVAC technicians and qualified service personnel should power down the air handler or furnace before replacing the filter. Confirm airflow direction by matching the arrow printed on the filter frame to the direction of airflow toward the blower. Because MERV 14 media restricts airflow more than lower-MERV filters, systems should be confirmed as rated for MERV 14 or above prior to installation. Change intervals of 1 to 3 months are typical, though high-particulate environments may require more frequent replacement.
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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