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The NORDIC PURE 18x18x1M14-4 is a pleated MERV 14 air filter sold in a 4-pack, designed for use in residential and light commercial HVAC systems. Each filter carries a nominal size of 18x18x1 inches with an actual size of 17.75 x 17.75 x 0.75 inches. The filter media is electrostatically charged and antimicrobial, capturing airborne particles including dust, pollen, mold spores, pet dander, smoke, bacteria, and virus carriers as air passes through the system. The beverage board frame is moisture resistant and heavy duty. MERV 14 efficiency is rated equivalent to MPR 2800. Licensed HVAC technicians and trained service professionals typically install or specify this filter type.
This filter is suited for residential homes, offices, and commercial environments where elevated air filtration is required. Applications include forced-air furnace systems, central air conditioning units, and high-efficiency air handlers rated to accept MERV 14 filters or higher. It is particularly recommended for occupants with allergies, respiratory conditions, or pet dander sensitivity, and for facilities that require a higher level of particulate control. Nordic Pure recommends replacing this filter every 1 to 3 months depending on the environment, with more frequent changes in homes with pets or occupants with allergy concerns.
Designed for forced-air HVAC systems - including gas furnaces, air handlers, and central AC units - that are rated to support MERV 14 filters or higher. Verify your system rating before installation, as high-efficiency filtration can restrict airflow in systems not designed for MERV 14 and above.
HVAC technicians and qualified service professionals should confirm that the air handler or furnace is rated for MERV 14 static pressure drop before installing this filter. Power down the HVAC system at the thermostat or disconnect before opening the filter compartment. Always match the actual filter dimensions - 17.75 x 17.75 x 0.75 inches - to the physical filter slot, not just the nominal label printed on the housing. Replace on a regular schedule, typically every 1 to 3 months, to maintain system airflow and indoor air quality.
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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