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The NORDIC PURE 19x21x1ExactCustomM7-6 is a custom-made, pleated MERV 7 air filter designed for residential and light commercial AC and forced-air furnace systems. Sized at an actual 19 x 21 x 0.75 inches, this filter ships as a six-pack cut to exact dimensions. The electrostatically charged filter media captures lint, dust, pollen, pet dander, mold spores, and dust mites on every air pass. The heavy-duty, moisture-resistant beverage board frame provides structural support, and the media is engineered to resist bacterial and mold growth on the filter surface itself. Licensed HVAC technicians and knowledgeable homeowners both install this unit in standard return-air filter slots.
This filter fits residential and commercial HVAC systems requiring a custom exact-size 19 x 21 x 1 nominal slot. Custom sizing means the filter is hand-fabricated by cutting down or combining standard frames, and may use tape as part of its construction depending on final dimensions. It is suited for homes with pets, allergy sufferers, or environments with elevated dust loads. Nordic Pure rates MERV 7 filtration as broadly comparable to filters carrying an MPR 600 rating under other manufacturer scales. Recommended replacement interval is every one to three months, with more frequent changes in high-particulate environments.
Custom-fabricated to fit AC and forced-air furnace return-air filter housings requiring an exact 19 x 21 x 0.75 inch filter. Nominal size is listed as 19 x 21 x 1. Measure the actual opening in your filter housing before ordering, as custom sizes are non-returnable.
Install and replace air filters with the HVAC system powered off at the thermostat and, where practical, at the disconnect. Confirm airflow direction arrows on the filter frame align with system airflow toward the blower. Use a tape measure to verify the exact opening dimensions in the filter housing before ordering a custom size. Custom-fabricated filters are not eligible for return, so accurate measurement is critical prior to purchase.
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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