Custom Size Furnace Air Filters

Order Custom Size Furnace Air Filters 

Have a custom sized furnace air filter that you cannot find for sale anywhere?

No sweat, we keep your air fresh without the stress regardless of your odd filter size!

PureFilters can manufacture your exact filter size and have it shipped to you within 10-15 business days. No furnace filter is too large or too small for size, regardless of your size, we can make it fit your exact needs.

Check If Your Custom Furnace Air Filter Size Is Listed

Before making a request for a custom filter size, be sure to first check our store if your custom furnace filter size is listed. PureFilters has over 900 furnace filter size already listed in our store, including several custom sizes.

Popular Sizes include:

1 Inch Custom Furnace Filters 

8x14x1 Furnace Air Filters

8x16x1 Furnace Air Filters

10x14x1 Furnace Air Filters

10x15x1 Furnace Air Filters

10x16x1 Furnace Air Filters 

8x20x1 Furnace Air Filters

10x18x1 Furnace Air Filters

12x15x1 Furnace Air Filters

12x16x1 Furnace Air Filters

8x24x1 Furnace Air Filters

12x18x1 Furnace Air Filters

15x15x1 Furnace Air Filters

13x18x1 Furnace Air Filters

10x24x1 Furnace Air Filters

8x30x1 Furnace Air Filters

10x25x1 Furnace Air Filters

14x18x1 Furnace Air Filters

13x20x1 Furnace Air Filters

12x22x1 Furnace Air Filters

9x30x1 Furnace Air Filters

13x21x1 Furnace Air Filters

10x28x1 Furnace Air Filters

16x18x1 Furnace Air Filters

17x17x1 Furnace Air Filters

10x30x1 Furnace Air Filters

12x25x1 Furnace Air Filters

14x22x1 Furnace Air Filters

12x26x1 Furnace Air Filters

13x24x1 Furnace Air Filters

17x19x1 Furnace Air Filters

12x27x1 Furnace Air Filters

13x25x1 Furnace Air Filters

16x21x1 Furnace Air Filters

17x20x1 Furnace Air Filters

16x22x1 Furnace Air Filters

17x21x1 Furnace Air Filters

12x30x1 Furnace Air Filters

19x19x1 Furnace Air Filters

17x22x1 Furnace Air Filters

15x25x1 Furnace Air Filters

14x27x1 Furnace Air Filters

14x28x1 Furnace Air Filters

18x22x1 Furnace Air Filters

19x21x1 Furnace Air Filters

12x34x1 Furnace Air Filters

19x22x1 Furnace Air Filters

14x30x1 Furnace Air Filters

20x21x1 Furnace Air Filters

12x36x1 Furnace Air Filters

19x23x1 Furnace Air Filters

20x22x1 Furnace Air Filters

21x21x1 Furnace Air Filters

15x30x1 Furnace Air Filters

20x23x1 Furnace Air Filters

21x22x1 Furnace Air Filters

16x30x1 Furnace Air Filters

21x23x1 Furnace Air Filters

22x22x1 Furnace Air Filters

14x36x1 Furnace Air Filters

16x32x1 Furnace Air Filters

19x27x1 Furnace Air Filters

22x24x1 Furnace Air Filters

18x30x1 Furnace Air Filters

20x27x1 Furnace Air Filters

22x26x1 Furnace Air Filters

23x25x1 Furnace Air Filters

16x36x1 Furnace Air Filters

24x25x1 Furnace Air Filters

22x28x1 Furnace Air Filters

20x32x1 Furnace Air Filters

18x36x1 Furnace Air Filters

24x28x1 Furnace Air Filters

20x34x1 Furnace Air Filters

25x28x1 Furnace Air Filters

20x36x1 Furnace Air Filters

25x29x1 Furnace Air Filters

27x27x1 Furnace Air Filters

22x36x1 Furnace Air Filters

25x32x1 Furnace Air Filters

28x30x1 Furnace Air Filters

29x29x1 Furnace Air Filters

24x36x1 Furnace Air Filters

30x30x1 Furnace Air Filters

30x32x1 Furnace Air Filters

30x36x1 Furnace Air Filters

2 Inch Custom Furnace Filters

8x14x2 Furnace Air Filters

8x16x2 Furnace Air Filters

10x14x2 Furnace Air Filters

10x15x2 Furnace Air Filters

10x16x2 Furnace Air Filters

8x20x2 Furnace Air Filters

10x18x2 Furnace Air Filters

12x15x2 Furnace Air Filters

12x16x2 Furnace Air Filters

8x24x2 Furnace Air Filters

12x18x2 Furnace Air Filters

15x15x2 Furnace Air Filters

13x18x2 Furnace Air Filters

10x24x2 Furnace Air Filters

8x30x2 Furnace Air Filters

10x25x2 Furnace Air Filters

14x18x2 Furnace Air Filters

13x20x2 Furnace Air Filters

12x22x2 Furnace Air Filters

13x21x2 Furnace Air Filters

16x18x2 Furnace Air Filters

17x17x2 Furnace Air Filters

10x30x2 Furnace Air Filters

12x25x2 Furnace Air Filters

14x22x2 Furnace Air Filters

12x26x2 Furnace Air Filters

13x24x2 Furnace Air Filters

17x19x2 Furnace Air Filters

12x27x2 Furnace Air Filters

14x24x2 Furnace Air Filters

16x21x2 Furnace Air Filters

17x20x2 Furnace Air Filters

16x22x2 Furnace Air Filters

17x21x2 Furnace Air Filters

12x30x2 Furnace Air Filters

19x19x2 Furnace Air Filters

17x22x2 Furnace Air Filters

15x25x2 Furnace Air Filters

14x27x2 Furnace Air Filters

14x28x2 Furnace Air Filters

18x22x2 Furnace Air Filters

19x21x2 Furnace Air Filters

19x22x2 Furnace Air Filters

14x30x2 Furnace Air Filters

20x21x2 Furnace Air Filters

17x25x2 Furnace Air Filters

12x36x2 Furnace Air Filters

19x23x2 Furnace Air Filters

20x22x2 Furnace Air Filters

15x30x2 Furnace Air Filters

20x23x2 Furnace Air Filters

21x22x2 Furnace Air Filters

16x30x2 Furnace Air Filters

21x23x2 Furnace Air Filters

22x22x2 Furnace Air Filters

14x36x2 Furnace Air Filters

16x32x2 Furnace Air Filters

19x27x2 Furnace Air Filters

22x24x2 Furnace Air Filters

18x30x2 Furnace Air Filters

20x27x2 Furnace Air Filters

22x26x2 Furnace Air Filters

23x25x2 Furnace Air Filters

16x36x2 Furnace Air Filters

24x25x2 Furnace Air Filters

22x28x2 Furnace Air Filters

20x32x2 Furnace Air Filters

18x36x2 Furnace Air Filters

24x28x2 Furnace Air Filters

20x34x2 Furnace Air Filters

25x28x2 Furnace Air Filters

20x36x2 Furnace Air Filters

24x30x2 Furnace Air Filters

25x29x2 Furnace Air Filters

27x27x2 Furnace Air Filters

22x36x2 Furnace Air Filters

25x32x2 Furnace Air Filters

28x30x2 Furnace Air Filters

29x29x2 Furnace Air Filters

24x36x2 Furnace Air Filters

29x30x2 Furnace Air Filters

30x30x2 Furnace Air Filters

30x32x2 Furnace Air Filters

30x36x2 Furnace Air Filters

4 Inch Custom Furnace Filters

10x10x4 Furnace Air Filters

8x14x4 Furnace Air Filters

8x16x4 Furnace Air Filters

10x14x4 Furnace Air Filters

12x12x4 Furnace Air Filters

10x15x4 Furnace Air Filters

10x16x4 Furnace Air Filters

8x20x4 Furnace Air Filters

10x18x4 Furnace Air Filters

12x15x4 Furnace Air Filters

12x16x4 Furnace Air Filters

8x24x4 Furnace Air Filters

14x14x4 Furnace Air Filters

10x20x4 Furnace Air Filters

12x18x4 Furnace Air Filters

15x15x4 Furnace Air Filters

13x18x4 Furnace Air Filters

10x24x4 Furnace Air Filters

12x20x4 Furnace Air Filters

8x30x4 Furnace Air Filters

10x25x4 Furnace Air Filters

14x18x4 Furnace Air Filters

16x16x4 Furnace Air Filters

13x20x4 Furnace Air Filters

12x22x4 Furnace Air Filters

13x21x4 Furnace Air Filters

14x20x4 Furnace Air Filters

16x18x4 Furnace Air Filters

17x17x4 Furnace Air Filters

10x30x4 Furnace Air Filters

12x25x4 Furnace Air Filters

15x20x4 Furnace Air Filters

14x22x4 Furnace Air Filters

12x26x4 Furnace Air Filters

13x24x4 Furnace Air Filters

17x19x4 Furnace Air Filters

12x27x4 Furnace Air Filters

18x18x4 Furnace Air Filters

14x24x4 Furnace Air Filters

16x21x4 Furnace Air Filters

17x20x4 Furnace Air Filters

14x25x4 Furnace Air Filters

16x22x4 Furnace Air Filters

17x21x4 Furnace Air Filters

12x30x4 Furnace Air Filters

18x20x4 Furnace Air Filters

19x19x4 Furnace Air Filters

17x22x4 Furnace Air Filters

15x25x4 Furnace Air Filters

14x27x4 Furnace Air Filters

14x28x4 Furnace Air Filters

18x22x4 Furnace Air Filters

19x21x4 Furnace Air Filters

19x22x4 Furnace Air Filters

14x30x4 Furnace Air Filters

20x21x4 Furnace Air Filters

17x25x4 Furnace Air Filters

12x36x4 Furnace Air Filters

19x23x4 Furnace Air Filters

20x22x4 Furnace Air Filters

21x21x4 Furnace Air Filters

15x30x4 Furnace Air Filters

18x25x4 Furnace Air Filters

20x23x4 Furnace Air Filters

21x22x4 Furnace Air Filters

16x30x4 Furnace Air Filters

21x23x4 Furnace Air Filters

22x22x4 Furnace Air Filters

14x36x4 Furnace Air Filters

16x32x4 Furnace Air Filters

19x27x4 Furnace Air Filters

22x24x4 Furnace Air Filters

18x30x4 Furnace Air Filters

20x27x4 Furnace Air Filters

22x26x4 Furnace Air Filters

23x25x4 Furnace Air Filters

16x36x4 Furnace Air Filters

20x30x4 Furnace Air Filters

24x25x4 Furnace Air Filters

22x28x4 Furnace Air Filters

25x25x4 Furnace Air Filters

20x32x4 Furnace Air Filters

18x36x4 Furnace Air Filters

24x28x4 Furnace Air Filters

20x34x4 Furnace Air Filters

25x28x4 Furnace Air Filters

20x36x4 Furnace Air Filters

24x30x4 Furnace Air Filters

27x27x4 Furnace Air Filters

22x36x4 Furnace Air Filters

25x32x4 Furnace Air Filters

28x30x4 Furnace Air Filters

29x29x4 Furnace Air Filters

24x36x4 Furnace Air Filters

30x30x4 Furnace Air Filters

30x36x4 Furnace Air Filters

You can narrow down your furnace filter by a number of ways in including size, MERV rating and or brand.

If you cannot find your filter size in your store, please proceed to the next steps below.

How To Measure Your Custom Furnace Filter's Size

It's important to know the difference between a nominal size and an actual/exact size which we explain it in detail in our Furnace Filter Size Guide. In order for us to make the correct filter for your needs, it's best that you send us the exact size and NOT the nominal size.

If the exact size is not written on your filter, please measure your filter's height, length and thickness in inches as seen in the image below:

 

Send in your custom size filter request with the size in inches using the contact form on the right-hand side of this page, in this format:

height x length x thickness (example: 14½ x 26¾ x 2½)

Someone from customer service will get back to you with a quote within 24 hours. From there, if you wish to proceed, we will send you an online payment request, once processed, you can expect your custom size furnace air filters delivered within 10-15 business days.

Make sure that you measure the exact dimensions of our furnace filter.

NOTE: There are no refunds/returns for custom fixed furnace filters. Please measure and confirm your exact filter size before purchasing.