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The NORDIC PURE 13x21x1ExactCustomM14-12 is a custom-made, pleated AC furnace air filter rated MERV 14, sold in a 12-pack. This filter is designed for forced-air HVAC systems in residential and light commercial applications where high-efficiency particulate capture is required. The pleated 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 microns, including dust, pollen, pet dander, mold spores, smoke, bacteria, and virus carriers. The nominal size is 13x21x1 with an actual size of 13 x 21 x 0.75 inches. The frame is constructed from heavy-duty, moisture-resistant beverage board. Each filter is hand-cut to exact dimensions.
This filter is suited for residential homes and commercial spaces where indoor air quality is a priority, particularly environments with allergy sufferers, pets, or occupants sensitive to airborne contaminants. MERV 14 filtration is comparable to MPR 2800-rated filters and is appropriate for newer, high-efficiency HVAC systems rated to handle MERV 14 or higher, including systems designed for HEPA-level filtration. HVAC systems not rated for high-MERV filters may experience reduced airflow if this filter is installed. Replacement is recommended every 1 to 3 months, with more frequent changes in high-dust or pet-heavy environments.
Designed for HVAC systems with a 13x21x1 nominal filter slot that require an exact actual size of 13 x 21 x 0.75 inches. Suitable for residential gas furnaces, air handlers, and central AC systems rated to accommodate MERV 14 filters. Verify your system rating before installing MERV 14 or higher filtration.
Installation is performed by HVAC technicians or knowledgeable homeowners. Power down the HVAC system at the thermostat or disconnect before replacing the filter. Confirm the actual filter slot dimensions with a tape measure before ordering, as this is a custom-made product and cannot be returned. Install the filter with the airflow arrow on the frame pointing toward the blower, away from the return air duct.
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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