1 Inch Furnace Filters

PureFilters carries a wide variety of 1 inch furnace air filters. All of our 1 inch filters are manufactured here in Canada and are made with high quality materials. The 1 inch furnace filters we carry are the pleated kind, providing a superior level of indoor air quality.

1 Inch Furnace Filter MERV Ratings

We offers a range of MERV ratings for 1 inch filters. If you are unsure of which MERV rating is suitable for your home, be sure to check out our MERV Rating Guide. You can also see a quick comparison chart here:

How Often To Change 1 Inch Filters

The frequency of 1 inch filter changes will highly depend on what is inside your home, where you are located and various other factors. We wrote a Filter Change Frequency Guide which will help you decide when it is time to change your furnace filter.

1 Inch Furnace Filter Size

It's important to know the difference between nominal size and actual or exact size. We wrote a Guide for Furnace Filter Sizes, if you are not sure what the size of your 1 inch filter is, we recommend checking it out.

"1 inch" refers to the thickness of the filter. Please see the image below, the third image shows how to measure the thickness of your filter:

Below, you can see a list of all 1 inch filter sizes (nominal sizes) we currently have listed in our store:

10x10x1

10x14x1

10x15x1

10x16x1

10x18x1

10x20x1

10x24x1

10x25x1

10x28x1

10x30x1

12x12x1

12x15x1

12x16x1

12x18x1

12x20x1

12x22x1

12x24x1

12x25x1

12x26x1

12x27x1

12x30x1

12x34x1

12x36x1

13x18x1

13x20x1

13x21x1

13x24x1

13x25x1

14x14x1

14x16x1

14x18x1

14x20x1

14x22x1

14x24x1

14x25x1

14x27x1

14x28x1

14x30x1

14x36x1

15x15x1

15x20x1

15x25x1

15x30x1

16x16x1

16x18x1

16x20x1

16x21x1

16x22x1

16x24x1

16x25x1

16x30x1

16x32x1

16x36x1

17x17x1

17x19x1

17x20x1

17x21x1

17x22x1

17x25x1

18x18x1

18x20x1

18x22x1

18x24x1

18x25x1

18x30x1

18x36x1

19x19x1

19x21x1

19x22x1

19x23x1

19x27x1

20x20x1

20x21x1

20x22x1

20x23x1

20x24x1

20x25x1

20x27x1

20x30x1

20x32x1

20x34x1

20x36x1

21x21x1

21x22x1

21x23x1

22x22x1

22x24x1

22x26x1

22x28x1

22x36x1

23x25x1

24x24x1

24x25x1

24x28x1

24x30x1

24x36x1

25x25x1

25x28x1

25x29x1

25x32x1

27x27x1

28x30x1

29x29x1

30x30x1

30x32x1

30x36x1

8x14x1

8x16x1

8x20x1

8x24x1

8x30x1

9x30x1

 

Request Custom Size Furnace Filter

If you still cannot find your furnace filter listed on our store, you can always request a custom size filter. Custom size filters can take up to 15 business days to deliver and all custom size filter sales are final (no refunds/exchanges). In order to request a custom size filter and receive a quote for your order, please click on the link below.

Request custom size filter

If you need help finding your exact filter on PureFilters.ca and prefer to speak to someone, please give us a call at 1-888-979-4284 or email us at support@purefilters.ca. We are available Monday to Friday from 9AM to 5PM Eastern Standard Time.