




Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The NORDIC PURE 17_1/4x23_1/4x1ExactCustomM12+C-6 is a custom-made, pleated MERV 12 plus carbon air filter designed for residential and light-commercial HVAC systems including furnaces and central air conditioners. This filter is manufactured to exact dimensions of 17.25 x 23.25 x 0.75 inches, cut and assembled by hand to match non-standard filter openings. The MERV 12 rating means the filter captures over 90 percent of airborne particles between 3 and 10 microns, and 80 to 90 percent of particles between 1 and 3 microns. The added carbon layer addresses odors from pets, cooking, and smoke. Licensed HVAC technicians and experienced DIYers install this filter in forced-air systems where a standard nominal size does not fit the existing filter slot.
This filter is suited for residential forced-air furnaces and central AC systems with non-standard filter cavities. Because it is built to exact measurements, it is appropriate for older equipment, custom-built air handlers, or any installation where a nominal off-the-shelf size leaves gaps that allow unfiltered air to bypass the media. The pack contains 6 filters. At MERV 12 filtration with carbon enhancement, it is well suited for households with pets, allergy sufferers, or occupants sensitive to airborne odors and fine particulates. Recommended replacement interval for 1-inch filters is every 30 to 90 days depending on local air quality and system runtime.
Designed as a custom exact-fit replacement for residential and light-commercial furnace and air conditioner filter slots with an actual opening of 17.25 x 23.25 x 0.75 inches. Measure the existing filter before ordering; custom sizes are not interchangeable with standard nominal filters.
Installation is performed by licensed HVAC technicians or qualified service personnel. Always shut off the furnace or air handler at the disconnect switch before removing or inserting a filter. Confirm airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower. Because this is a custom exact-size filter, verify actual slot dimensions to the nearest 1/8 inch before ordering, as custom-made filters cannot be returned.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!


