Nordic Pure 21x23x1ExactCustomM8+C-6 Merv 8 Filter 6pk

Product Description

The NORDIC PURE 21x23x1ExactCustomM8+C-6 is a custom-cut, pleated AC and furnace air filter rated MERV 8 with an integrated carbon layer, designed for residential and light commercial HVAC systems. Manufactured from electrostatically charged synthetic media, it captures airborne particulates in the 3-10 micron range at an efficiency of 70-85 percent, including lint, household dust, pollen, pet dander, mold spores, and odors. The carbon component addresses gaseous contaminants and odors that standard pleated filters do not address. This is a custom-sized filter built to exact dimensions, making it suitable for non-standard filter openings where off-the-shelf sizes do not fit. It ships in a 6-pack and is manufactured in the USA.

This filter is intended for use in residential and commercial forced-air heating and cooling systems where a non-standard opening requires an exact custom dimension. The nominal size is 21x23x1 with an actual size of 21 x 23 x 0.75 inches. It is appropriate for use in gas furnaces, heat pumps, and central air handlers where the filter slot accepts a one-inch media filter. Licensed HVAC technicians and knowledgeable property owners performing routine filter maintenance are the primary installers. Nordic Pure recommends changing this filter every 30-90 days depending on indoor and outdoor air quality conditions.

Key Features

• MERV 8 rated filtration captures 70-85 percent of particles between 3-10 microns, including pollen, dust, pet dander, and mold spores
• Integrated carbon layer reduces household odors and gaseous contaminants not addressed by standard pleated media alone
• Electrostatically charged synthetic media attracts and holds particulates without significantly restricting airflow
• Reinforced 2-part frame construction provides additional structural durability for custom-cut dimensions
• Custom exact-cut to 21 x 23 x 0.75 inches actual size for non-standard HVAC filter openings
• Made in the USA; sold as a 6-pack

Compatibility

Custom-made to the exact dimensions listed; designed as a direct-fit replacement for any residential or light commercial forced-air HVAC system with a filter opening that accepts a nominal 21x23x1 filter. Because this is a custom size, verify the actual opening dimensions with a tape measure before ordering. Custom sizes are non-returnable.

Installation Notes

Power down or set the HVAC system to the off position before removing the old filter to prevent unfiltered air from circulating through the air handler. Note the airflow direction arrow printed on the filter frame and orient the replacement filter to match. Custom-cut filters may use tape at frame joints as part of their construction, which is normal and does not affect filtration performance. Follow local codes and the equipment manufacturer's maintenance schedule for filter change intervals.