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The NORDIC PURE 18x18x1M13+C-4 is a MERV 13 pleated air filter with activated carbon, sold in a 4-pack. It combines electrostatically charged, antimicrobial synthetic filter media with a flat activated carbon panel to capture fine airborne particulates and adsorb odorous gases and volatile organic compounds (VOCs). The actual filter dimensions are 17.75 x 17.75 x 0.75 inches, fitting nominal 18x18x1 filter slots. A metal mesh support grid bonded to the pleats adds structural rigidity, and the moisture-resistant beverage board frame holds up in high-humidity conditions. Licensed HVAC technicians and knowledgeable DIYers install this filter in residential forced-air heating and cooling systems.
This filter is suited for residential HVAC systems where both particulate filtration and odor control are priorities. The activated carbon layer targets smoke, cooking odors, pet smells, and VOCs while the MERV 13 media captures lint, household dust, pollen, dust mites, pet dander, mold spores, smog particles, bacteria, and virus carriers. It is particularly appropriate for homes with pets, allergy sufferers, or occupants sensitive to airborne odors. Nordic Pure rates this filter as equivalent to MPR 2200-2400. Replacing the filter every 30 to 90 days maintains system airflow and filtration efficiency.
Designed as a drop-in replacement for nominal 18x18x1 filter slots in residential forced-air furnaces, air handlers, and central air conditioning systems. Verify the actual opening dimensions against the actual filter size of 17.75 x 17.75 x 0.75 inches before installation.
Turn off the HVAC system at the thermostat or disconnect power before removing the old filter to prevent unfiltered air from bypassing the slot during changeout. Confirm airflow direction arrows on the filter frame align with the system airflow direction toward the blower. Nominal filter sizes differ from actual sizes across manufacturers, so measure the filter slot opening and compare it to the 17.75 x 17.75 x 0.75 inch actual dimensions before ordering. Inspect and replace this filter every 30 to 90 days or more frequently during construction, renovation, or high-use periods.
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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