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The NORDIC PURE 19x21x1CustomM13+C-6 is a custom-made, pleated MERV 13 plus carbon air filter designed for residential and light-commercial HVAC systems. Built to the exact nominal size of 19x21x1 inches with an actual size of 18.5 x 20.5 x 0.75 inches, this filter combines mechanical MERV 13 filtration with an activated carbon layer to reduce odors alongside common airborne particulates. It ships in a 6-pack. Licensed HVAC technicians and knowledgeable homeowners install this filter in forced-air furnaces and central air conditioning systems where a non-standard filter slot requires custom dimensions.
This filter is suited for residential forced-air systems with non-standard or custom filter openings that cannot accept a nominal off-the-shelf size. The MERV 13 rating makes it appropriate for households with allergy or asthma concerns, pet dander, smoke exposure, or general indoor air quality requirements. The added carbon layer addresses household odors that mechanical filtration alone does not capture. Before ordering, measure the existing filter slot carefully - the actual filter dimensions must fall within 1/8 inch of the listed actual size. Custom sizes are hand-fabricated to the dimensions specified at order and are not eligible for return.
Designed as a custom-size OEM-style replacement filter for residential and light-commercial forced-air furnaces and central air conditioning systems with a filter slot requiring a nominal 19x21x1 inch filter. Verify the actual opening dimensions before ordering, as this is a non-returnable custom product.
Filter replacement is performed by HVAC technicians or qualified homeowners. Power down the air handler or furnace at the disconnect or thermostat before removing the old filter. Confirm airflow direction arrow on the filter frame aligns with the direction of air movement toward the blower. Nordic Pure recommends replacing 1-inch filters every 30 to 90 days depending on household conditions such as pets, dust levels, 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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