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The NORDIC PURE 19x21x1ExactCustomM13+C-12 is a custom-cut, pleated HVAC air filter combining MERV 13 filtration with an activated carbon layer for enhanced particulate and odor control. Built from electrostatically charged synthetic media, it captures over 90% of airborne particles between 1 and 10 microns, and 50% to 70% of particles between 0.3 and 1 micron. The filter measures exactly 19 x 21 x 0.75 inches actual size and ships in a 12-pack. HVAC technicians and facility maintenance professionals install these in residential and light-commercial air handling systems where standard nominal sizes do not fit.
This filter is sized for applications where a standard nominal filter leaves gaps in the filter rack. The exact 19 x 21 x 0.75-inch actual dimension makes it appropriate for custom or non-standard filter housings in forced-air heating and cooling systems. The added carbon layer addresses common odor sources including smoke, cooking byproducts, and general household VOCs alongside the high-efficiency particulate filtration. Custom construction may involve cutting or combining standard filter frames, which may include tape reinforcement at joints. Frames feature a reinforced 2-part construction for structural durability and consistent airflow support over the service life of the filter.
Designed for forced-air residential and light-commercial HVAC systems with non-standard filter housings requiring an exact 19 x 21 x 0.75-inch actual-size filter. Verify the actual opening dimensions with a tape measure before ordering, as custom sizes are not eligible for return.
HVAC technicians and qualified maintenance personnel should power down the air handling unit at the disconnect or thermostat before replacing the filter. Confirm airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower. Measure the existing filter housing opening to confirm the actual fit is within 1/8 inch of the filter's actual dimensions before installation. Replace every 30 to 90 days depending on environmental conditions and system runtime.
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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