




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 11_1/2x21x1ExactCustomM7-6 is a custom-cut, pleated AC furnace air filter rated MERV 7, designed for residential and light commercial HVAC systems. Each filter measures 11.5 x 21 x 0.75 inches actual size and is sold in a 6-pack. The pleated filter media is electrostatically charged to capture airborne particles including lint, dust, pollen, pet dander, mold spores, and dust mites. The heavy-duty, moisture-resistant beverage board frame provides structural integrity through full filter life. MERV 7 efficiency is comparable to filters rated MPR 600 and meets ASHRAE-standard testing criteria. Licensed HVAC technicians and experienced DIYers install this filter as a direct replacement in forced-air systems.
This filter is sized as a custom exact-fit unit for applications where standard nominal sizes do not match the actual filter slot dimensions. It suits residential furnaces, central air handlers, and split-system HVAC equipment requiring a 11.5 x 21 x 0.75 inch actual-size filter. Custom construction may involve cutting or combining filter frames, and tape may be used in fabrication depending on the final dimensions. This filter is hand-made to the exact dimensions specified and is non-returnable. Measure the actual opening in your unit before ordering to confirm fit.
Designed as a custom exact-size replacement for residential and light commercial forced-air furnace and AC air handler systems requiring an actual filter slot size of 11.5 x 21 x 0.75 inches. Confirm actual slot dimensions before ordering. Custom sizes are non-returnable.
Installation is typically performed by a licensed HVAC technician or a knowledgeable building owner. Power down or set the thermostat to OFF before removing the existing filter to prevent unfiltered air from circulating through the system. Note the airflow direction arrow on the filter frame and install with the arrow pointing toward the blower. Nordic Pure recommends replacing this filter every 1 to 3 months, with more frequent changes in environments with pets, high dust loads, or occupants with respiratory sensitivities.
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!


