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

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  • Your filters are guaranteed to be the right fit!
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  • You’re guaranteed to find expert help!

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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.

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44 Item(s)

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  • TIER1-DPFPC16X25X5DPN

    TIER1-DPFPC16X25X5DPN

    $53.72
    MSRP: $64.08
    Save 16%
  • TIER1-DPFPC16X25X5M11DPN

    TIER1-DPFPC16X25X5M11DPN

    $58.20
    MSRP: $69.23
    Save 16%
  • TIER1-DPFPC16X25X5M13DPN

    TIER1-DPFPC16X25X5M13DPN

    $67.16
    MSRP: $79.53
    Save 16%
  • DPFPC16X25X5OBDPN Tier1 Replacement Air Filter - 16X25X5 (2-Pack)
  • TIER1-DPFPC20X20X5DPN

    TIER1-DPFPC20X20X5DPN

    $51.48
    MSRP: $61.50
    Save 16%
  • TIER1-DPFPC20X20X5M11DPN

    TIER1-DPFPC20X20X5M11DPN

    $58.20
    MSRP: $69.23
    Save 16%
  • TIER1-DPFPC20X20X5M13DPN

    TIER1-DPFPC20X20X5M13DPN

    $67.16
    MSRP: $79.53
    Save 16%
  • DPFPC20X20X5OBDPN Tier1 Replacement Air Filter - 20X20X5 (2-Pack)
  • TIER1-DPFPC20X25X5DPN

    TIER1-DPFPC20X25X5DPN

    $55.96
    MSRP: $66.65
    Save 16%
  • TIER1-DPFPC20X25X5M11DPN

    TIER1-DPFPC20X25X5M11DPN

    $60.44
    MSRP: $71.81
    Save 16%
  • TIER1-DPFPC20X25X5M13DPN

    TIER1-DPFPC20X25X5M13DPN

    $67.16
    MSRP: $79.53
    Save 16%
  • DPFPC20X25X5OBDPN Tier1 Replacement Air Filter - 20X25X5 (2-Pack)
  • TIER1-DPFPC24X25X5DPN

    TIER1-DPFPC24X25X5DPN

    $53.72
    MSRP: $64.08
    Save 16%
  • TIER1-DPFPC24X25X5DPN2

    TIER1-DPFPC24X25X5DPN2

    $53.72
    MSRP: $64.08
    Save 16%
  • TIER1-DPFPC24X25X5M11DPN

    TIER1-DPFPC24X25X5M11DPN

    $60.44
    MSRP: $71.81
    Save 16%
  • TIER1-DPFPC24X25X5M11DPN2

    TIER1-DPFPC24X25X5M11DPN2

    $60.44
    MSRP: $71.81
    Save 16%
  • TIER1-DPFPC24X25X5M13DPN

    TIER1-DPFPC24X25X5M13DPN

    $69.40
    MSRP: $82.11
    Save 15%
  • TIER1-DPFPC24X25X5M13DPN2

    TIER1-DPFPC24X25X5M13DPN2

    $69.40
    MSRP: $82.11
    Save 15%
  • DPFPC24X25X5OBDPN Tier1 Replacement Air Filter - 24X25X5 (2-Pack)
  • DPFPC24X25X5OBDPN2 Tier1 Replacement Air Filter - 24x25x5 (2-Pack)
  • TIER1-DPFPCC0017DPN

    TIER1-DPFPCC0017DPN

    $69.40
    MSRP: $82.11
    Save 15%
  • TIER1-DPFPCC0017M11DPN

    TIER1-DPFPCC0017M11DPN

    $76.12
    MSRP: $89.84
    Save 15%
  • TIER1-DPFPCC0017M13DPN

    TIER1-DPFPCC0017M13DPN

    $85.08
    MSRP: $100.14
    Save 15%
  • DPFPCC0017OBDPN Tier1 Replacement Air Filter - 16x20x4.25 (2-Pack)
  • TIER1-DPFPCC0021DPN

    TIER1-DPFPCC0021DPN

    $69.40
    MSRP: $82.11
    Save 15%
  • TIER1-DPFPCC0021M11DPN

    TIER1-DPFPCC0021M11DPN

    $76.12
    MSRP: $89.84
    Save 15%
  • TIER1-DPFPCC0021M13DPN

    TIER1-DPFPCC0021M13DPN

    $85.08
    MSRP: $100.14
    Save 15%
  • DPFPCC0021OBDPN Tier1 Replacement Air Filter - 19x20x4.25 (2-Pack)
  • TIER1-DPFR16X25X3DPN

    TIER1-DPFR16X25X3DPN

    $73.85
    MSRP: $87.23
    Save 15%
  • TIER1-DPFR16X25X3M11DPN

    TIER1-DPFR16X25X3M11DPN

    $80.57
    MSRP: $94.96
    Save 15%
  • TIER1-DPFR16X25X3M13DPN

    TIER1-DPFR16X25X3M13DPN

    $94.01
    MSRP: $110.41
    Save 15%
  • DPFR16X25X3OBDPN Tier1 Replacement Air Filter - 16X25X3 (3-Pack)
  • TIER1-DPFR20X25X5DPN

    TIER1-DPFR20X25X5DPN

    $55.96
    MSRP: $66.65
    Save 16%
  • TIER1-DPFR20X25X5M11DPN

    TIER1-DPFR20X25X5M11DPN

    $60.44
    MSRP: $71.81
    Save 16%
  • TIER1-DPFR20X25X5M13DPN

    TIER1-DPFR20X25X5M13DPN

    $67.16
    MSRP: $79.53
    Save 16%
  • DPFR20X25X5OBDPN Tier1 Replacement Air Filter - 20X25X5 (2-Pack)
  • TIER1-DPFWG16X25X5DPN

    TIER1-DPFWG16X25X5DPN

    $53.72
    MSRP: $64.08
    Save 16%
  • TIER1-DPFWG16X25X5M11DPN

    TIER1-DPFWG16X25X5M11DPN

    $58.20
    MSRP: $69.23
    Save 16%
  • TIER1-DPFWG16X25X5M13DPN

    TIER1-DPFWG16X25X5M13DPN

    $67.16
    MSRP: $79.53
    Save 16%
  • DPFWG16X25X5OBDPN Tier1 Replacement Air Filter - 16X25X5 (2-Pack)
  • TIER1-DPFWG20X25X5DPN

    TIER1-DPFWG20X25X5DPN

    $55.96
    MSRP: $66.65
    Save 16%
  • TIER1-DPFWG20X25X5M11DPN

    TIER1-DPFWG20X25X5M11DPN

    $60.44
    MSRP: $71.81
    Save 16%
  • TIER1-DPFWG20X25X5M13DPN

    TIER1-DPFWG20X25X5M13DPN

    $67.16
    MSRP: $79.53
    Save 16%
  • DPFWG20X25X5OBDPN Tier1 Replacement Air Filter - 20X25X5 (2-Pack)

44 Item(s)

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