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The NORDIC PURE 17x21x1ExactCustomM7-6 is a custom-cut, pleated AC furnace air filter rated MERV 7, sold in a 6-pack. It is designed for residential and light commercial HVAC systems where a custom exact-fit size is required. The nominal size is 17x21x1, with an actual size of 17 x 21 x 0.75 inches. The filter media is electrostatically charged to attract and capture airborne particulates, and the frame is constructed from a heavy-duty, moisture-resistant beverage board. Licensed HVAC technicians and knowledgeable homeowners install this filter as a direct replacement in forced-air furnace and air conditioning systems.
This filter fits forced-air HVAC applications in residential homes and commercial spaces where a 17x21x1 nominal slot is present but an exact 17 x 21 x 0.75 inch fit is required. Because it is a custom-made product, each unit is hand-cut to the exact dimensions specified at the time of order. It is well suited for households with pets, allergy sufferers, and environments with elevated dust or pollen loads. Nordic Pure recommends replacing this filter every 1 to 3 months depending on the specific environment and usage conditions.
Designed as a custom exact-size OEM-style replacement for residential and light commercial forced-air furnace and AC systems requiring a nominal 17x21x1 filter slot with an actual fit of 17 x 21 x 0.75 inches. Measure the existing filter before ordering, as custom sizes are not eligible for returns.
Installation is performed by HVAC technicians or the system owner after powering down the furnace or air handler at the disconnect or thermostat. Confirm the actual slot dimensions with a tape measure before installing, paying attention to the airflow direction arrow on the filter frame. Custom-cut filters may use taped frame sections; this does not affect filtration performance. Replace every 1 to 3 months, or more frequently in high-dust or high-allergen 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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