Custom Size NaturalAire Ultra MERV 13 Filters (12 Filters)

Using the dropdowns below select the exact size you would like us to have your filters made, length x width.

Sale price$ 249.00

Filter depth will be 1" (actual size 3/4")

Price is based on size of custom filters and will update automatically.


This filter is custom made to your exact size giving you a perfect fit to ensure no dirty air is bypassing your system.

Pleated Air Filter, MERV 13, 1-Inch

Hospital-grade air filtration provides maximum protection for your homeÕs environment.

  • MERV 13 rating: Reduces up to 95% of airborne particles including: Dust and Lint, Dust Mite Debris, Pollen, Pet Dander, Mold Spores, Bacteria, Microscopic Allergens, Virus Carriers, Most Smoke, Smog, Oil Smoke, as well as Lead Dust
  • High efficiency airborne particle removal for a cleaner, fresher, and healthier indoor environment
  • Electrostatically charged media helps keep your air and HVAC system clean for more efficient operation saving you money on energy consumption and equipment repairs
  • Robust construction makes the filter easy to install
  • Recommended replacement schedule: 3 months
  • Available in a variety of sizes to fit any household HVAC system
  • Quantity: 12 Filters
  • 1" depth available: 1" nominal = 3/4" actual size
  • Starting at $249 per case ($20.75 per filter) with Free Shipping - Pricing is based on filter size

Filter Details

With hospital-grade filtration, the NaturalAire Healthy Ultra (MERV 13) provides maximum protection. The MERV (Minimum Efficiency Reporting Value) 13 rating means it is third-party certified to effectively reduce indoor air pollutants such as household dust, pollen, dander, and lint, as well as lead. MERV ratings provide a standard comparison of air filter performance. A higher MERV rating signifies greater efficiency and increased protection against airborne particles. The electrostatically charged media helps keep your HVAC system clean for more efficient operation which saves you money on both energy consumption and potential equipment repairs. The clay-coated filter frame and wire backing provide durability throughout the filter's life. The NaturalAire Healthy Ultra (MERV 13) air filter maintains the minimum listed efficiency through the 90-day life of the filter. UL Classified.

Ordering Custom Filters

Select the length and width in the exact filter size needed with the dropdown menu options. Here is an example of how your size should be entered: 19-3/8 x 21-1/8 x 1

Fraction to decimal chart:

  • 1/8 = .125
  • 1/4 = .25
  • 3/8 = .375
  • 1/2 = .5
  • 5/8 = .625
  • 3/4 = .75
  • 7/8 = .875
Filter Chart Measure Ruler

Filter Fit Guarantee™

Custom Size Filter Disclaimer

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