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

47 Item(s)

Grid  List 

Set Descending Direction
  • Pleatco PLBS75-M Replacement Pool and Spa Filter

    Pleatco PLBS75-M Pool and Spa Replacement Filter

    $34.99
    MSRP: $40.72
    Save 14%
  • Pleatco PCAL100-M Replacement Pool and Spa Filter
  • Pleatco PCAL75 Replacement Pool and Spa Filter

    Pleatco PCAL75 Pool and Spa Filter Replacement

    $41.19
    MSRP: $51.99
    Save 21%
  • Tier1 brand replacement for 817-0131, 178584 & R173476 (front)

    Tier1 brand replacement for 817-0131, 178584 & R173476

    $51.99
    MSRP: $73.59
    Save 29%
  • Tier1 brand replacement for 817-0143, 178585 & R173578 (front)

    Tier1 brand replacement for 817-0143, 178585 & R173578

    $67.99
    MSRP: $88.54
    Save 23%
  • Pleatco PLBS100-M Replacement Pool and Spa Filter
  • Tier1 brand replacement for 817-0014, 173584 & R173584 (front)

    Tier1 brand replacement for 817-0014, 173584 & R173584

    $17.29
    MSRP: $29.35
    Save 41%
  • Pleatco PRB17.5SF-JH-M-PAIR Replacement Pool and Spa Filter (2-Pack)
  • Pleatco PRB17.5SF-JH-PAIR Replacement Pool and Spa Filter (2-Pack)
  • Pleatco PRB17.5SF-PAIR Replacement Pool and Spa Filter (2-Pack)
  • Tier1 brand replacement for 17-2327, 100586, 33521, 25392, 303909, M-4326, 817-2500 & R173429 (front)
  • Pleatco PRB25-IN-4 replacement for 17-2325
  • PAS-1445 Tier1 Replacement Pool and Spa Filter
  • Waterway Pool & Spa Heavy Duty Replacement Filter by Pleatco: 5 x 13 5/16
  • Dynamic Pool & Spa Standard Filter Replacement by Tier1 (5 x 13-5/16)

    Tier1 brand replacement for 03FIL1600

    $19.95
    MSRP: $43.23
    Save 54%
  • Pleatco PWW10 Replacement Pool and Spa Filter

    Pleatco PWW10 Pool and Spa Replacement Filter

    $16.02
    MSRP: $20.72
    Save 23%
  • Pleatco PWW100-M4 replacement for 817-0100 & 111832 (Antimicrobial)
  • Pleatco PWW100ST-P3 Replacement Pool and Spa Filter

    Pleatco PWW100ST-P3 Pool and Spa Replacement Filter

    $64.77
    MSRP: $76.79
    Save 16%
  • Pleatco PWW100ST-P3-M Replacement Pool and Spa Filter
  • Pleatco PWW10-JH-M-PAIR Replacement Pool and Spa Filter (2-Pack)
  • Pleatco PWW10-JH-PAIR Replacement Pool and Spa Filter (2-Pack)
  • Pleatco PWW10-M Replacement Pool and Spa Filter
  • Pleatco PWW10PAIR Replacement Pool and Spa Filter (2-Pack)

    Pleatco PWW10PAIR Pool and Spa Replacement Filter (2-pack)

    $17.37
    MSRP: $22.28
    Save 22%
  • Pleatco PWW25L Replacement Pool and Spa Filter
  • Tier1 brand replacement for 817-4035

    Tier1 brand replacement for 817-4035

    $17.99
    MSRP: $29.27
    Save 39%
  • Tier1 brand replacement for 817-4035 (Antimicrobial) (alternate)

    Tier1 brand replacement for 817-4035 (Antimicrobial)

    $21.99
    MSRP: $31.03
    Save 29%
  • Pleatco PWW40 Pool and Spa Replacement Filter

    Pleatco PWW40 Pool and Spa Replacement Filter

    $25.11
    MSRP: $31.18
    Save 19%
  • Waterway 817-0050 Pool and Spa Filter Replacement by Tier1

    Waterway 817-0050 Pool and Spa Filter Replacement by Tier1

    $20.99
    MSRP: $34.27
    Save 39%
  • Tier1 brand replacement for 817-4050

    Tier1 brand replacement for 817-4050

    $19.99
    MSRP: $36.79
    Save 46%
  • Tier1 brand replacement for 817-4050 (Antimicrobial)

    Tier1 brand replacement for 817-4050 (Antimicrobial)

    $26.99
    MSRP: $37.81
    Save 29%
  • Pleatco PWW50P3-M Pool and Spa Antimicrobial Replacement Filter
  • Pleatco PWW50P4 replacement filter
  • Pleatco PWW75-4 Pool and Spa Replacement Filter

    Pleatco PWW75-4 Pool and Spa Replacement Filter

    $64.89
    MSRP: $80.99
    Save 20%
  • Pleatco PWWCT100 Pool and Spa Replacement Filter

    Pleatco PWWCT100 Pool and Spa Replacement Filter

    $66.99
    MSRP: $88.86
    Save 25%
  • Pleatco PWWCT100-M Pool and Spa Antimicrobial Replacement Filter
  • Pleatco PWWCT125 Pool and Spa Replacement Filter

    Pleatco PWWCT125 Pool and Spa Replacement Filter

    $91.85
    MSRP: $107.93
    Save 15%
  • Pleatco PWWCT150 Pool and Spa Replacement Filter

    Pleatco PWWCT150 Pool and Spa Replacement Filter

    $83.99
    MSRP: $118.85
    Save 29%
  • 817-0075N Waterway Clearwater Comparable Pool and Spa Filter Replacement by Tier1
  • Pleatco PWWCT75-M Pool and Spa Antimicrobial Replacement Filter
  • Pleatco PWWPC125B Pool and Spa Replacement Filter

    Pleatco PWWPC125B Pool and Spa Replacement Filter

    $97.87
    MSRP: $114.85
    Save 15%
  • Pleatco PWWPC150B Replacement Pool and Spa Filter

    Pleatco PWWPC150B Replacement Pool and Spa Filter

    $99.99
    MSRP: $125.80
    Save 21%

47 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top