Discount Water Filters and Air Filters at Discount Filter Store.com

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

Air Conditioner & Furnace Air Filters By Brand

Whether you’re looking for one air conditioner/ furnace filter to replace your old dirty one or to stock up on furnace air filters, Discount Filter Store can help, by providing you with more, for less.  We offer air conditioner filters from some of the industry’s top manufacturers including 3M Filtrete, Bryant, Aprilaire, Honeywell, and more.

Not sure which filter is right for your home?  Our helpful experts are also here to make sure you find the filter you need. Give us a call at 1-800-277-3458, and we’ll answer all your air filter questions.

Search by filter size

Clear All
Compare

Items 1 to 25 of 471 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Grid  List 

Set Descending Direction
  1. 3M Filtrete 600 Dust & Pollen Air Filter (24x24x1)

    3M Filtrete 600 Dust & Pollen Air Filter (24x24x1)

    1 inch filters, MERV Rating = 8 Learn More

    (Retail Price: $119.59 ) $95.99

  2. 3M Filtrete 600 Dust & Pollen Air Filter (12x30x1)

    3M Filtrete 600 Dust & Pollen Air Filter (12x30x1)

    1 inch filters, MERV Rating = 8 Learn More

    (Retail Price: $119.59 ) $69.99

  3. 3M Filtrete 600 Dust & Pollen Air Filter (16x16x1)

    3M Filtrete 600 Dust & Pollen Air Filter (16x16x1)

    1 inch filters, MERV Rating = 8 Learn More

    (Retail Price: $94.29 ) $66.99

  4. 3M Filtrete 600 Dust & Pollen Air Filter (18x30x1)

    3M Filtrete 600 Dust & Pollen Air Filter (18x30x1)

    1 inch filters, MERV Rating = 8 Learn More

    (Retail Price: $111.54 ) $74.99

  5. 3M Filtrete 600 Dust & Pollen Air Filter (16x24x1)

    3M Filtrete 600 Dust & Pollen Air Filter (16x24x1)

    1 inch filters, MERV Rating = 8 Learn More

    (Retail Price: $91.99 ) $69.99

  6. Aprilaire 401 Air Purifier Replacement Filter

    Aprilaire 401 Air Purifier Replacement Filter

    Fits Aprilaire air cleaner model 2400 Learn More
    $32.99 MSRP:  $45.99
  7. DPFI16X20X4 Tier1 Replacement Air Filter - 16X20X4 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000M-100 - 16 x 20 x 4 - MERV 8 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000M and ACM1000M Learn More
  8. DPFI16X20X4M11 Tier1 Replacement Air Filter - 16X20X4 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000M-100 - 16 x 20 x 4 - MERV 11 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000M and ACM1000M Learn More
  9. DPFI16X20X4M13 Tier1 Replacement Air Filter - 16X20X4 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000M-100 - 16 x 20 x 4 - MERV 13 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000M and ACM1000M Learn More
  10. DPFI16X21X5 Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000-100 - 16 x 21 x 5 - MERV 8 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  11. DPFI16X21X5DCM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Comfort Plus - 16 x 21 x 5 - MERV 8 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  12. DPFI16X21X5DEA Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 21 x 5 - MERV 8 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  13. DPFI16X21X5DEM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 21 x 5 - MERV 8 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  14. DPFI16X21X5M11 Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000-100 - 16 x 21 x 5 - MERV 11 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  15. DPFI16X21X5M11DCM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Comfort Plus - 16 x 21 x 5 - MERV 11 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  16. DPFI16X21X5M11DEA Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 21 x 5 - MERV 11 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  17. DPFI16X21X5M11DEM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 21 x 5 - MERV 11 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  18. DPFI16X21X5M13 Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000-100 - 16 x 21 x 5 - MERV 13 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  19. DPFI16X21X5M13DCM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Comfort Plus - 16 x 21 x 5 - MERV 13 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  20. DPFI16X21X5M13DEA Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 21 x 5 - MERV 13 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  21. DPFI16X21X5M13DEM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 21 x 5 - MERV 13 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1000, ACM1000 and 0121-018000 Learn More
  22. DPFI16X25X4 Tier1 Replacement Air Filter - 16X25X4 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 8 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1400M and ACM1400M Learn More
  23. DPFI16X25X4M11 Tier1 Replacement Air Filter - 16X25X4 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 11 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1400M and ACM1400M Learn More
  24. DPFI16X25X4M13 Tier1 Replacement Air Filter - 16X25X4 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 13 (2-Pack)

    Fits White-Rodgers air cleaner models ACB1400M and ACM1400M Learn More
  25. DPFI16X26X5 Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

Items 1 to 25 of 471 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Grid  List 

Set Descending Direction
Scroll To Top