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

Water Filters & Air Filters Brands

Whether you’re looking to replace your inline water filter or trying to find the best air purifiers, we can help you by providing quality filters for less. Discount Filter Store offers the top filter brands, such as PUR, Honeywell, and ZeroWater to help make sure that you have worry-free water. 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 your filter questions from reverse osmosis water filtration systems to air humidifiers, to get you to the product you need.

Clear All
Compare

36 Item(s)

Grid  List 

Set Descending Direction
  • Tier1 Aprilaire #401 16 x 28 x 6 MERV 11 Comparable Replacement Filter
  • Tier1 Aprilaire #201 20 x 25 x 6 MERV 11 Comparable Replacement Filter
  • 401 Aprilaire Comparable Replacement for 16 x 28 x 6-MERV 11 Air Filter by Tier1 (2-Pack)
  • DPFS16X28X6 Tier1 Replacement Air Filter - 16X28X6 (2-Pack)
  • DPFS16X28X6M11 Tier1 Replacement Air Filter - 16X28X6 (2-Pack)
  • Aprilaire 401 16 x 28 x 6 MERV 13 Comparable Air Filter by Tier1 (2-Pack)
  • Aprilaire 410 Air Purifier Replacement Filter
  • Aprilaire 213 Air Purifier Replacement Filter
  • Aprilaire 413 Air Purifier Replacement Filter
  • Aprilaire Water Panel 45 (2-pack)

    Aprilaire Water Panel 45 (2-pack)

    $22.99
    MSRP: $31.34
    Save 27%
  • Aprilaire 513 Air Purifier Replacement Filter

    Aprilaire 513 Air Purifier Replacement Filter

    $84.49
    MSRP: $104.99
    Save 20%
  • Aprilaire Water Panel 10

    Aprilaire Water Panel 10

    $9.95
    MSRP: $18.34
    Save 46%
  • Aprilaire 201 Air Purifier Replacement Filter
  • Aprilaire 510 Air Purifier Replacement Filter

    Aprilaire 510 Air Purifier Replacement Filter

    $65.39
    MSRP: $83.99
    Save 22%
  • Aprilaire 210 Air Purifier Replacement Filter
  • Aprilaire 4040 24-Volt Humidifier Solenoid Valve

    Aprilaire 4040 24-Volt Humidifier Solenoid Valve

    $51.59
    MSRP: $87.99
    Save 41%
  • #35 Aprilaire Comparable Humidifier Replacement Water Panel by Tier1
  • #45 Aprilaire Comparable Humidifier Replacement Filter by Tier1

36 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top