Custom Size NaturalAire MERV 8 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$ 209.00

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.

The NaturalAire Standard MERV 8 air filter removes dramatically more potentially harmful airborne particles, compared to basic fiberglass air filters. It is a great first step to improve the quality of your indoor air. You can breathe easier with the NaturalAire Standard air filter.

This filter helps capture unwanted particles in your home, including: Dust and Lint, Dust Mite Debris, Pollen, Pet Dander, Mold Spores and Bacteria.

Rated MERV 8, it has efficient airborne particle removal and delivers the air flow you need to create an cleaner, fresher indoor environment.

The robust construction makes the filter easier to install and ensures it will last up to 90 days in your home.

  • MERV 8
  • Reduces up to 75% of large airborne particles
  • Available in almost any size to fit almost any household heating or cooling system
  • Easy to install and replace every 90 days
  • Manufactured in the U.S.
  • UL Classified
  • Quantity: 12 Filters
  • 1" depth available: 1" nominal = 3/4" actual size
  • Starting at $209 per case ($17.41 per filter) with Free Shipping - Pricing is based on filter size

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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