Nordic Pure 21x21x1ExactCustomM8-6 Merv 8 Filter 6 Pack

Product Description

The NORDIC PURE 21x21x1ExactCustomM8-6 is a custom-cut, pleated AC furnace air filter rated MERV 8, sold in a 6-pack. The nominal size is 21x21x1 with an actual size of 21 x 21 x 0.75 inches. It uses electrostatically charged filter media housed in a moisture-resistant beverage board frame to capture lint, dust, pollen, pet dander, mold spores, and other airborne particles. This filter is hand-made to the exact dimensions specified at ordering and is installed by HVAC technicians or homeowners servicing residential and light commercial forced-air systems.

This filter is suited for residential and commercial HVAC applications where a 21x21x1 nominal filter opening is present. It fits standard forced-air furnaces and air handlers that accept a 21 x 21 x 0.75 inch actual-size filter. The MERV 8 rating is comparable to MPR 800 filters and follows the ASHRAE filtration efficiency standard. Recommended replacement interval is every 1 to 3 months, with more frequent changes advised in homes with pets or allergy sufferers. This custom size is manufactured per the exact dimensions entered at the time of order.

Key Features

• MERV 8 rating captures 70 to 85 percent of airborne particles between 3 and 10 microns, including lint, dust, pollen, pet dander, and mold spores
• Electrostatically charged media attracts unwanted particles and outperforms standard fiberglass filters
• Moisture-resistant beverage board frame provides structural integrity and supports consistent airflow
• Reinforced 2-part frame construction adds durability for the custom-cut format
• Media does not promote the growth of bacteria or mold on the filter surface
• Made in the USA to the exact dimensions specified at ordering

Compatibility

Designed as a custom-cut OEM-style replacement for residential and commercial forced-air furnaces and air handlers that accept a nominal 21x21x1 filter with an actual size of 21 x 21 x 0.75 inches. Measure the existing filter before ordering to confirm fit, as nominal and actual sizes differ on most AC furnace filters.

Installation Notes

Always shut down the HVAC system at the thermostat and disconnect power before replacing the air filter. Confirm airflow direction by matching the arrow on the filter frame to the direction of airflow into the blower. Because this is a custom-made size, measure the filter slot carefully before ordering, as custom filters are not eligible for return. Replacement is a standard maintenance task for HVAC technicians and qualified homeowners following the equipment manufacturer guidelines.