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4inch

26 Item(s)

  1. 12 x 24 x 4 Basic MERV 8 Pleated Air Filter

    12 x 24 x 4 Basic MERV 8 Pleated Air Filter

    CA$11.00

    or subscribe

    Actual Size: 11 3/8" x 23 3/8" x 3 3/4" Learn More
  2. 12 x 24 x 4 MERV 13 Pleated Air Filter

    12 x 24 x 4 MERV 13 Pleated Air Filter

    CA$15.00

    or subscribe

    Actual Size: 11 3/8" x 23 3/8" x 3 3/4" Learn More
  3. 14 x 20 x 4 MERV 13 Pleated Air Filter

    14 x 20 x 4 MERV 13 Pleated Air Filter

    CA$23.99

    or subscribe

    Actual Size: 14" x 20" x 3 3/4" Learn More
  4. 14 x 20 x 4 MERV 8 Pleated Air Filter

    14 x 20 x 4 MERV 8 Pleated Air Filter

    CA$13.99

    or subscribe

    Actual Size: 14" x 20" x 3 3/4" Learn More
  5. 15 x 25 x 4 MERV 8 Pleated Air Filter

    15 x 25 x 4 MERV 8 Pleated Air Filter

    CA$15.99

    or subscribe

    Actual Size: 15" x 25" x 3 3/4" Learn More
  6. 15 x 25 x 4 MERV 13 Pleated Air Filter

    15 x 25 x 4 MERV 13 Pleated Air Filter

    CA$23.99

    or subscribe

    Actual Size: 15" x 25" x 3 3/4" Learn More
  7. 16x20x4 MERV 13 Pleated Air Filter

    16 x 20 x 4 MERV 13 Pleated Air Filter

    CA$17.99

    or subscribe

    Actual Size: 15 1/2" x 19 1/2" x 3 3/4" Learn More
  8. 16 x 20 x 4 Basic MERV 8 Pleated Air Filter

    16 x 20 x 4 Basic MERV 8 Pleated Air Filter

    CA$13.49

    or subscribe

    Actual Size: 15 1/2" x 19 1/2" x 3 3/4" Learn More
  9. 16 x 24 x 4 MERV 8 Pleated Air Filter

    16 x 24 x 4 MERV 8 Pleated Air Filter

    CA$17.99

    or subscribe

    Actual Size: 16" x 24" x 3 3/4" Learn More
  10. 16 x 24 x 4 MERV 13 Pleated Air Filter

    16 x 24 x 4 MERV 13 Pleated Air Filter

    CA$25.23

    or subscribe

    Actual Size: 16" x 24" x 3 3/4" Learn More
  11. 16 x 25 x 4 Basic MERV 8 Pleated Air Filter

    16 x 25 x 4 Basic MERV 8 Pleated Air Filter

    CA$17.79

    or subscribe

    Actual Size: 15 1/2" x 24 1/2" x 3 3/4" Learn More
  12. 16 x 25 x 4 MERV 13 Pleated Air Filter

    16 x 25 x 4 MERV 13 Pleated Air Filter

    CA$19.99

    or subscribe

    Actual Size: 15 1/2" x 24 1/2" x 3 3/4" Learn More
  13. 18 x 20 x 4 MERV 8 Pleated Air Filter

    18 x 20 x 4 MERV 8 Pleated Air Filter

    CA$18.99

    or subscribe

    Actual Size: 18" x 20" x 3 3/4" Learn More
  14. 18 x 20 x 4 MERV 13 Pleated Air Filter

    18 x 20 x 4 MERV 13 Pleated Air Filter

    CA$23.99

    or subscribe

    Actual Size: 18" x 20" x 3 3/4" Learn More
  15. 18 x 24 x 4 MERV 13 Pleated Air Filter

    18 x 24 x 4 MERV 13 Pleated Air Filter

    CA$19.99

    or subscribe

    Actual Size: 17 3/8" x 23 3/8" x 3 3/4" Learn More
  16. 18 x 24 x 4 Basic MERV 8 Pleated Air Filter

    18 x 24 x 4 Basic MERV 8 Pleated Air Filter

    CA$14.19

    or subscribe

    Actual Size: 17 3/8" x 23 3/8" x 3 3/4" Learn More
  17. 20 x 20 x 4 Basic MERV 8 Pleated Air Filter

    20 x 20 x 4 Basic MERV 8 Pleated Air Filter

    CA$13.49

    or subscribe

    Actual Size: 19 1/2" x 19 1/2" x 3 3/4" Learn More
  18. 20 x 20 x 4 MERV 13 Pleated Air Filter

    20 x 20 x 4 MERV 13 Pleated Air Filter

    CA$17.49

    or subscribe

    Actual Size: 19 1/2" x 19 1/2" x 3 3/4" Learn More
  19. 20 x 22 x 4 MERV 13 Pleated Air Filter

    20 x 22 x 4 MERV 13 Pleated Air Filter

    CA$28.99

    or subscribe

    Actual Size: 20" x 22" x 3 3/4" Learn More
  20. 20 x 22 x 4 MERV 8 Pleated Air Filter

    20 x 22 x 4 MERV 8 Pleated Air Filter

    CA$18.99

    or subscribe

    Actual Size: 20" x 22" x 3 3/4" Learn More
  21. 20 x 24 x 4 Basic MERV 8 Pleated Air Filter

    20 x 24 x 4 Basic MERV 8 Pleated Air Filter

    CA$13.49

    or subscribe

    Actual Size: 19 3/8" x 23 3/8" x 3 3/4" Learn More
  22. 20 x 24 x 4 MERV 13 Pleated Air Filter

    20 x 24 x 4 MERV 13 Pleated Air Filter

    CA$17.49

    or subscribe

    Actual Size: 19 3/8" x 23 3/8" x 3 3/4" Learn More
  23. 20 x 25 x 4 Basic MERV 8 Pleated Air Filter

    20 x 25 x 4 Basic MERV 8 Pleated Air Filter

    CA$16.59

    or subscribe

    Actual Size: 19 1/2" x 24 1/2" x 3 3/4" Learn More
  24. 20 x 25 x 4 MERV 13 Pleated Air Filter

    20 x 25 x 4 MERV 13 Pleated Air Filter

    CA$19.99

    or subscribe

    Actual Size: 19 1/2" x 24 1/2" x 3 3/4" Learn More
  25. 24 x 24 x 4 Basic MERV 8 Pleated Air Filter

    24 x 24 x 4 Basic MERV 8 Pleated Air Filter

    CA$17.09

    or subscribe

    Actual Size: 23 3/8" x 23 3/8" x 3 3/4" Learn More
  26. 24 x 24 x 4 MERV 13 Pleated Air Filter

    24 x 24 x 4 MERV 13 Pleated Air Filter

    CA$21.28

    or subscribe

    Actual Size: 23 3/8" x 23 3/8" x 3 3/4" Learn More

26 Item(s)