Nordic Pure 21_1/2x24x1ExactCustomM7-6 Merv 7 Filter 6pk

Product Description

The NORDIC PURE 21_1/2x24x1ExactCustomM7-6 is a custom-cut, MERV 7 pleated air filter designed for residential and light commercial HVAC systems, including forced-air furnaces and central air conditioning units. Rated at MERV 7 per ASHRAE standards, this filter captures 50 to 70 percent of airborne particles between 3 and 10 microns, including lint, dust, pollen, pet dander, and mold spores. The filter media is electrostatically charged to attract unwanted particles and will not promote bacterial or mold growth on the filter surface. The actual dimensions are 21.5 x 24 x 0.75 inches, hand-cut to exact specification from a moisture-resistant beverage board frame.

This filter fits ducted HVAC applications in residential homes and office environments where standard nominal sizes do not match the return-air opening. Because it is a custom-made size, it is manufactured by cutting down or combining standard filter frames, sometimes with tape reinforcement, to achieve the exact dimensions ordered. It is suited for installations where a 21.5 x 24 x 0.75-inch opening requires an exact-fit filter rather than a loose-fitting nominal size. Typical installers include HVAC technicians performing system maintenance and homeowners with non-standard filter slots. Nordic Pure recommends replacement every 1 to 3 months, or more frequently in homes with pets or allergy concerns.

Key Features

• MERV 7 efficiency rating per ASHRAE standard - comparable to MPR 600-rated filters
• Captures 50 to 70 percent of particles from 3 to 10 microns, including pollen, pet dander, dust, and mold spores
• Electrostatically charged pleated media for enhanced particle attraction and low airflow resistance
• Moisture-resistant beverage board frame with reinforced 2-part construction for structural durability
• Custom hand-cut to exact dimensions of 21.5 x 24 x 0.75 inches - not a nominal approximation
• Made in the USA

Compatibility

Custom-made to fit HVAC return-air filter slots with an exact opening of 21.5 x 24 x 0.75 inches. Designed as a direct exact-fit replacement for ducted forced-air furnace and AC systems requiring a non-standard filter dimension. Measure the existing filter slot before ordering, as this size is not eligible for return.

Installation Notes

HVAC technicians and qualified homeowners typically perform filter replacement on ducted forced-air systems. Before replacing, shut down the furnace or air handler at the thermostat or disconnect switch to prevent debris from being drawn into the blower during the swap. Confirm airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower before seating the filter. Because this is a custom-cut product, verify the actual slot measurement - not the nominal size printed on the old filter - before installation.