Nordic Pure 12_1/2x21x1ExactCustomM7+C-6 Furnace Filter 6pk

Product Description

The NORDIC PURE 12_1/2x21x1ExactCustomM7+C-6 is a custom-made, pleated MERV 7 plus carbon air filter designed for residential and light-commercial AC and gas furnace systems. Built to exact dimensions of 12.5 x 21 x 0.75 inches, this filter ships as a 6-pack and is hand-cut to match non-standard filter openings that standard sizes cannot fit. The MERV 7 rating captures 50 to 70 percent of airborne particles between 3 and 10 microns in size, while the integrated carbon layer targets odors. A reinforced 2-part frame supports consistent airflow and structural integrity over the filter's service life. Licensed HVAC technicians and knowledgeable homeowners install this filter in forced-air systems where a custom fit is required.

This filter is intended for forced-air HVAC systems - gas furnaces, electric furnaces, and central air conditioning air handlers - where the return-air grille or filter cabinet requires a non-standard nominal size of 12.5 x 21 x 1 inch. Because each unit is hand-fabricated to the exact dimensions listed, it is well-suited for older homes, custom-built cabinets, or any installation where no off-the-shelf filter matches. For 1-inch filters of this type, a replacement interval of every 30 to 90 days is recommended, depending on indoor air quality conditions such as pets, dust levels, and occupancy.

Key Features

• Custom-fabricated to exact dimensions of 12.5 x 21 x 0.75 inches - fits non-standard filter openings
• MERV 7 filtration captures 50 to 70 percent of particles between 3 and 10 microns, including lint, dust, pollen, pet dander, and mold spores
• Integrated carbon layer reduces common household odors alongside particulate filtration
• Reinforced 2-part pleated frame maintains shape and supports balanced airflow over the full service interval
• Pack of 6 filters - supports a full year of service at the recommended 30-to-90-day change interval
• Made in the USA

Compatibility

Designed as a custom exact-fit replacement for forced-air AC and furnace systems requiring a nominal 12.5 x 21 x 1 inch filter. Actual dimensions are 12.5 x 21 x 0.75 inches. Measure the existing filter carefully before ordering; custom-made filters are not eligible for return.

Installation Notes

Installation is performed by a licensed HVAC technician or qualified service professional. Before replacing the filter, shut down the HVAC system at the thermostat and, where required by local code, at the disconnect or breaker. Verify the actual opening dimensions with a tape measure to the nearest 1/8 inch before ordering a custom size - the actual filter width and length should fall within 1/8 inch of the opening. Slide the filter into the cabinet with the airflow arrow pointing toward the blower, and restore power only after the filter is fully seated and the access panel is secured.