4 Inch Filters | Canadian Air Filters

Please note: Our lead time for shipping orders out is between 4 to 7 business days for standard sizes. Custom sizes are 8 to 12 business days. We appreciate your patience and understanding. If you need urgent orders for critical applications email us at info@canadianairfilters.com

Welcome to our store

📩 Email us at info@canadianairfilters.com or 📞 Call us at 1-(800) 858-0765 for any questions. Our business hours are Monday to Friday, 7:00 AM – 3:30 PM (Eastern Time). We recommend contacting us via email for the fastest response.

Shipping to Newfoundland is not available at checkout, but we do ship there! Email us at info@canadianairfilters.com for shipping rates.

18x28x4 - PLEATED MERV 10 (6 Pack)

18x28x4 - PLEATED MERV 10 (6 Pack)

Regular price $150.00 CAD

Regular price Sale price $150.00 CAD
Unit price per
14x25x4 MERV 08 Pleated Air Filter (04 pack)

14x25x4 MERV 08 Pleated Air Filter (04 pack)

Regular price $100.00 CAD

Regular price Sale price $100.00 CAD
Unit price per
13.75X17.75X2 MERV 11 Pleated Air Filter (06 pack)

13.75X17.75X2 MERV 11 Pleated Air Filter (06 pack)

Regular price $108.00 CAD

Regular price ~~$20.00 CAD~~ Sale price $108.00 CAD
Unit price per
14.75x22.75x4 MERV 11 (06 pack)

14.75x22.75x4 MERV 11 (06 pack)

Regular price $195.00 CAD

Regular price Sale price $195.00 CAD
Unit price per
9.5x15.5x1 MERV 8 Pleated Air Filter (6 pack)

9.5x15.5x1 MERV 8 Pleated Air Filter (6 pack)

Regular price $95.00 CAD

Regular price Sale price $95.00 CAD
Unit price per
18x33x1 - PLEATED MERV 10 (6 Pack)

18x33x1 - PLEATED MERV 10 (6 Pack)

Regular price $126.50 CAD

Regular price Sale price $126.50 CAD
Unit price per
18.5x23.5x1 MERV 8 Pleated Air Filter (6 pack)

18.5x23.5x1 MERV 8 Pleated Air Filter (6 pack)

Regular price $95.00 CAD

Regular price Sale price $95.00 CAD
Unit price per
18.5x32.5x4 MERV 11 Pleated Air Filter (6 pack)

18.5x32.5x4 MERV 11 Pleated Air Filter (6 pack)

Regular price $255.00 CAD

Regular price Sale price $255.00 CAD
Unit price per
18.5x21.5x4 MERV 8 Pleated Air Filter (6 pack)

18.5x21.5x4 MERV 8 Pleated Air Filter (6 pack)

Regular price $170.00 CAD

Regular price Sale price $170.00 CAD
Unit price per
12×25.75×1 Exact MERV 8 Pleated Air Filter (06 pack)

12×25.75×1 Exact MERV 8 Pleated Air Filter (06 pack)

Regular price $115.00 CAD

Regular price Sale price $115.00 CAD
Unit price per
22x24x4 MERV 8 Pleated Air Filter (6 pack)

22x24x4 MERV 8 Pleated Air Filter (6 pack)

Regular price $210.00 CAD

Regular price Sale price $210.00 CAD
Unit price per
24x28x4 MERV 13 Pleated Air Filter (4 pack)

24x28x4 MERV 13 Pleated Air Filter (4 pack)

Regular price $180.00 CAD

Regular price Sale price $180.00 CAD
Unit price per
22x25x4 MERV 8 Pleated Air Filter (6 pack)

22x25x4 MERV 8 Pleated Air Filter (6 pack)

Regular price $210.00 CAD

Regular price Sale price $210.00 CAD
Unit price per
13X16X4 MERV 08 Pleated Air Filter (06 pack)

13X16X4 MERV 08 Pleated Air Filter (06 pack)

Regular price $125.00 CAD

Regular price Sale price $125.00 CAD
Unit price per
12X16X4 MERV 08 Pleated Air Filter (06 pack)

12X16X4 MERV 08 Pleated Air Filter (06 pack)

Regular price $125.00 CAD

Regular price Sale price $125.00 CAD
Unit price per
16x21x4 MERV 11 Pleated Air Filter (06 pack)

16x21x4 MERV 11 Pleated Air Filter (06 pack)

Regular price $194.00 CAD

Regular price Sale price $194.00 CAD
Unit price per