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The NORDIC PURE 8_3/4x18x1ExactCustomM12-6 is a custom-cut, pleated MERV 12 air filter designed for residential and light commercial HVAC systems, including forced-air furnaces and central air conditioning units. With an actual size of 8.75 x 18 x 0.75 inches, this filter is built to exact dimensions and ships as a 6-pack. The electrostatically charged filter media captures over 90% of airborne particles in the 3-10 micron range and 80-90% in the 1-3 micron range, targeting lint, dust, pollen, pet dander, mold spores, smoke, bacteria, and virus carriers. The moisture-resistant beverage board frame provides structural support without promoting mold or bacterial growth on the media itself. Licensed HVAC technicians and experienced DIYers install these as direct replacements in standard filter slots.
This filter is suited for residential homes and commercial office environments where occupants deal with allergies, pet dander, or elevated particulate concerns. MERV 12 efficiency is comparable to filters rated MPR 1500-1900 on proprietary scales. The MERV rating system is standardized by ASHRAE, making cross-brand efficiency comparisons straightforward. Nordic Pure recommends replacing this filter every 1-3 months under normal conditions. Households with pets or allergy sufferers should replace more frequently. This custom size is manufactured by cutting down or combining standard filter frames and may be reinforced with tape at seams depending on the final dimensions.
Custom-cut to the exact actual size of 8.75 x 18 x 0.75 inches for HVAC systems requiring a non-standard filter slot. Measure the existing filter opening before ordering, as this size is non-returnable and made to order. Confirm actual slot dimensions rather than relying on the nominal size printed on a current filter.
Power down or set the thermostat to off before removing the old filter to prevent unfiltered air from circulating through the air handler during the swap. Slide the new filter into the filter slot with the airflow arrow on the frame pointing toward the blower and away from the return air duct. Confirm the filter seats flush with no gaps at the frame edges, as bypass air around an ill-fitting custom filter reduces filtration efficiency. Note the installation date and replace on a 1-3 month schedule, or more frequently in high-particulate or high-occupancy environments.
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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