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12x24x12 Header 65% (MERV 11) Rigid Cell Filter

Actual Size: 9.75X21.75X11.375

New look, same great filter

We’re updating the “look” of our filters.
While we do, your air filter will be the correct size & performance, but may look different than the image above. Learn more

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1-3 for$100.66 ea4-11 for$88.07 eaSave 13%12+ for$75.49 eaSave 25%


  • This is a list 12x24x12 MERV 11 air filter replacement for your furnace, air conditioner, heat pump, or HVAC system
  • Actual air filter size: 9.75X21.75X11.375
  • MERV 11 synthetic media (comparable with MPR 1000/1200 and FPR 7) offers superior protection from dust, pollen, pet dander, mold, smog and more by trapping 95% of airborne particles without impacting air flow
  • High-quality construction means electrostatically charged pleated filter media, reinforced wire backing for structural integrity, and a durable frame to resist heat and humidity
  • Built to last 3 months. 300% longer than fiberglass models
  • 100% manufactured in the United States and designed with recyclable materials
  • Learn more about 12x24x12 Air Filters

FilterBuy Rigid Cell filters are made out of ultra fine synthetic media in order to eliminate fiber shedding and are designed to function well in high humidity applications. The synthetic filter media is enclosed in a galvanized steel frame and is supported by a wire mesh backing as well as inserted plastic fingers to ensure rigidity.

Our rigid cell filters are designed to be used in both side access as well as built-up filter banks and can replace traditional pocket style filters.

Need a different rigid cell filter size? Simply select from the dropdown:

Reviews From Satisfied Customers


After our usual supplier was short of stock with a several month lead time Filterbuy had exactly what we needed without a long lead time! We will be using Filterbuy for all our filter needs from now on! Thank you !

Susan B.

Verifiedverified buyer

Great product and value

Andre L.

Verifiedverified buyer