Nordic Pure 21_1/2x23x1ExactCustomM8+C-6 Furnace Filter

Product Description

The NORDIC PURE 21_1/2x23x1ExactCustomM8+C-6 is a custom-cut, MERV 8 Plus Carbon pleated air filter designed for residential and light commercial AC and furnace systems. Measuring 21.5 x 23 x 0.75 inches actual size, this filter ships as a 6-pack and uses electrostatically charged synthetic media combined with a carbon layer to capture airborne particulates and reduce common household odors. It is installed by HVAC technicians or knowledgeable homeowners as a drop-in replacement wherever a custom exact-size filter is required. The reinforced 2-part frame maintains structural integrity under normal system static pressure.

This filter is suited for residential forced-air furnaces and central air conditioning systems that require a non-standard custom opening size of 21.5 x 23 x 0.75 inches actual. Because standard nominal sizes will not fit this application, this part is manufactured to exact dimensions by cutting down or combining standard filter frames, which may include taped seams. It is appropriate for installations where the filter slot does not match any standard nominal size and the actual measured opening falls within 0.125 inches of the listed dimensions.

Key Features

• MERV 8 rating captures 70 to 85 percent of airborne particles between 3 and 10 microns, including lint, dust, pollen, pet dander, mold spores, and baking flour
• Activated carbon layer targets common household odors in addition to particulate filtration
• Electrostatically charged synthetic media improves particle capture without significantly increasing airflow resistance
• Reinforced 2-part frame construction provides added durability and maintains filter shape over service life
• Custom exact-size cut to 21.5 x 23 x 0.75 inches actual for non-standard filter openings
• Made in the USA; sold as a 6-pack

Compatibility

Designed as a custom exact-size replacement for residential and light commercial forced-air furnace and AC systems with a filter slot requiring an actual opening of 21.5 x 23 x 0.75 inches. Verify actual slot dimensions with a tape measure before ordering. Custom sizes are not eligible for returns.

Installation Notes

Power down the furnace or air handler at the disconnect or thermostat before removing the existing filter. Confirm airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower. Because this is a custom-cut filter, verify the actual opening measures within 0.125 inches of 21.5 x 23 x 0.75 inches before installation. Replace every 30 to 90 days depending on indoor air quality conditions, occupancy, and pet presence.