5 Inch Furnace Filters

PureFilters carries a wide variety of 5 inch furnace air filters. All of our 5 inch filters are either manufactured here in Canada or sourced directly with the brand manufacturer. The 5 inch furnace filters we carry are the pleated kind, providing a superior level of indoor air quality.

Below, you can see a list of all 5 inch filter sizes/models we currently have listed in our store:

16x20x5 Furnace Filters

Lennox X0582 - BMAC Furnace Filter 16x20x5 MERV 11

Generalaire / Reservepro GA100A03 Furnace Filter 16x20x5 MERV 10

Carrier GAPCCCAR1620 - Infinity Air Purifier Filter 16x20x5 MERV 15


16x25x5 Furnace Filters

Lennox X6670 - Compatible Air Filter 16x25x5

Lennox X6670 - Healthy Climate HCF16-11 Replacement Filter 16x25x5 MERV 11 (OEM)

Lennox X6672 - Carbon Clean Healthy Climate HCF16-16 Replacement Filter 16x25x5 MERV 16

Generalaire / Reservepro 4541 MERV 11 Furnace Filter 16x25x5

Carrier & Bryant FILXXCAR0016 – Compatible Air Filter 16x25x5

Carrier GAPCCCAR1625 - Infinity Air Purifier Filter 16x25x5 MERV 15

Carrier / Bryant EXPXXFIL0016 - EZ Flex Air Filter 16x25x5 MERV 10

Lennox X0583 - BMAC Furnace Filter 16x25x5 MERV 11

Lennox X8309 - Furnace Filter 16x25x5 MERV 10

Carrier / Bryant FILXXCAR0016 - EZ Flex Air Filter 16x25x5 MERV 8

Carrier / Bryant EXPXXFIL0024 - EZ Flex Air Filter 24x25x5 MERV 10

Lennox X8312- Furnace Filter 16x25x5 MERV 16


16x26x5 Furnace Filters

Lennox X8789 – PureAir PCO16-28 Filter 16x26x5 MERV 16

Lennox Y6605 - size 16x26x5 MERV 16 pleated media filter

Lennox X0584 - BMAC Furnace Filter 16x26x5 MERV 11


17.5x27x5 Furnace Filters

Honeywell TRN1727T1 - Trane Perfect Fit Replacement Air Filter 17.5x27x5 MERV 10


20x20x5 Furnace Filters

Lennox X0585 - Compatible Air Filter 20x20x5

Lennox X0585 - Healthy Climate Cabinet Furnace Filter 20x20x5 MERV 11 (OEM)

Generalaire / Reservepro 4556 MERV 11 Furnace Filter 20x20x5

Carrier GAPCCCAR2020 - Infinity Air Purifier Filter 20x20x5 MERV 15

Generalaire / Reservepro GA100A11 Furnace Filter 20x20x5 MERV 10

Lennox X8311- Furnace Filter 20x20x5 MERV 10


20x21x5  Furnace Filters

Lennox X8790 – PureAir PCO14-23 Filter 20x21x5 MERV 16

Lennox Y6606 - Size 20x21x5 MERV 16 Pleated Media Filter


20x25x5 Furnace Filters

Lennox X6673 - Compatible Air Filter 20x25x5

Lennox X6675 - Healthy Climate Carbon Clean HCF20-16 Replacement Filter 20x25x5 MERV 16

Lennox X6673 - Healthy Climate HCF20-11 Replacement Filter 20x25x5 MERV 11 (OEM)

Lennox X0586 - BMAC Furnace Filter 20x25x5 MERV 11

Generalaire / Reservepro 4551 MERV 11 Furnace Filter 20x25x5

Lennox X7935 - Healthy Climate HCF14-16 Replacement Filter 20x20x5 MERV 16

Lennox X1152 - MF1-20 Furnace Filter 20x25x5 MERV 11

Generalaire / Reservepro 4368 Furnace Filter 20x25x5 MERV 11

Bryant / Carrier FILXXCAR0020 - Pleated Air Filter 20x25x5 Inch MERV 8

Generalaire / Reservepro GA100A37 Furnace Filter 20x25x5 MERV 10

Carrier GAPCCCAR2025 - Infinity Air Purifier Filter 20x25x5 MERV 15

Lennox X8313- Furnace Filter 20x25x5 MERV 16

Lennox X8310 - Furnace Filter 20x25x5 MERV 10

Carrier / Bryant EXPXXFIL0020 - EZ Flex Air Filter 20x25x5 MERV 10


20x26x5 Furnace Filters

Lennox X8788 – PureAir PCO20-28 Filter- 20x26x5 MERV 16

Lennox Y6604 - size 20x26x5 MERV 16 pleated media filter

Lennox X0587 - BMAC Furnace Filter 20x26x5 MERV 11


24x25x5 Furnace Filters

Carrier / Bryant FILXXCAR0024 – Pleated Air Filter 24x25x5 MERV 8

Bryant / Carrier FILXXCAR0124 - Pleated Air Filter 24x25x5 MERV 11

5 Inch Furnace Filter MERV Ratings

We offers a range of MERV ratings for 5 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 5 Inch Filters

The frequency of 5 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.

5 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 5 inch filter is, we recommend checking it out.

"5 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:



Request Custom Size 5 Inch 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.