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The NORDIC PURE 16x21x1CustomM12+C-6 is a custom-sized, MERV 12 pleated air filter with activated carbon media, designed for residential and light commercial HVAC systems including forced-air furnaces and central air conditioning units. The filter measures 15.5 x 20.5 x 0.75 inches actual size and ships in a six-pack. Electrostatically charged synthetic media attracts and captures airborne particulates, while the carbon layer targets odors and gaseous contaminants. MERV 12 filtration captures over 90 percent of particles between 3 and 10 microns and 80 to 90 percent of particles between 1 and 3 microns. Licensed HVAC technicians and knowledgeable homeowners install this filter as a direct drop-in replacement in standard 1-inch filter slots.
This filter is suited for residential homes and offices where occupants want reduced allergen loads alongside odor control. Typical applications include split-system central air handlers, gas and electric forced-air furnaces, and heat pump air handlers using a 1-inch filter slot. The custom nominal size of 16x21x1 is intended for installations where standard stocked sizes do not fit the existing filter rack. Nordic Pure constructs custom sizes by cutting down or combining standard filter frames, which may include taped joints. Replacement interval is recommended every 30 to 90 days depending on indoor and outdoor conditions, pet presence, and system runtime.
Designed as a custom OEM-style replacement for any forced-air furnace or central air conditioning system using a nominal 16x21x1 filter slot. Custom sizes are cut to order. Measure the actual opening of the existing filter rack before ordering, as this SKU is non-returnable.
Filter installation is performed by licensed HVAC technicians or qualified homeowners. Always switch the thermostat fan setting to off and, where applicable, power down the air handler at the disconnect before removing the existing filter. Confirm airflow direction arrows on the filter frame align with the direction of airflow toward the blower. Because this is a custom-cut size, verify actual rack dimensions against the stated actual filter size of 15.5 x 20.5 x 0.75 inches prior to installation.
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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