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

11 Item(s)

Grid  List 

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

    Pleatco PLBS75-M Pool and Spa Replacement Filter

    Fits the Rainbow, Waterway and Leisure Bay S2/G2 Spa 75 Learn More
    $34.99 MSRP:  $40.72
  2. Tier1 brand replacement for 17-2327, 100586, 33521, 25392, 303909, M-4326, 817-2500 & R173429 (front)

    Tier1 brand replacement for 17-2327, 100586, 33521, 25392, 303909, M-4326, 817-2500 & R173429

    Fits the Dynamic Series I RDC-25, I RDC-25S, Dynamic Series II & II RTL/RCF-25, Dynamic Series IV-DFM, DFML and Waterway 25 Learn More
    $13.69 MSRP:  $24.14
  3. Pleatco PRB25-IN-4 replacement for 17-2325

    Pleatco PRB25-IN-4 replacement for 17-2325

    Fits systems that use 5-inch diameter by 13 5/16-inch length filters Learn More
  4. Pleatco PRB25-IN-M replacement for 17-2327, 100586, 33521, 25392, 303909, M-4326, 817-2500 & R173429 (Antimicrobial)

    Pleatco PRB25-IN-M replacement for 17-2327, 100586, 33521, 25392, 303909, M-4326, 817-2500 & R173429 (Antimicrobial)

    Fits the Dynamic Series I RDC-25, I RDC-25S, Dynamic Series II & II RTL/RCF-25, Dynamic Series IV-DFM, DFML and Waterway 25 Learn More
    $25.79 MSRP:  $33.99
  5. Waterway Pool & Spa Heavy Duty Replacement Filter by Pleatco: 5 x 13 5/16

    Waterway Pool & Spa Heavy Duty Replacement Filter by Pleatco: 5 x 13 5/16

    For use in spa and pool models that support R173430, 17-2482, FC-2380, R173430, 25393, Pleatco PRB37-IN-4, Dynamic and Waterway filters. Learn More
    $31.69 MSRP:  $40.99
  6. Dynamic Pool & Spa Standard Filter Replacement by Tier1 (5 x 13-5/16)

    Tier1 brand replacement for 03FIL1600

    Fits Rainbow Dynamic 50, Dynamic Series IV DFM-50, DFML-50, Series IV DFM-100, DFML-100, Series II & III RTL-50, RCF-50, Series I RDC-50, RDC-50S, Waterway and other pool and spa filtration systems Learn More
    $19.95 MSRP:  $43.23
  7. Pleatco PRB50-IN-M replacement for 03FIL1600, 17-2380, RTL-50, 100533, 6540-471, 25391, 817-5000 & R173434 (Antimicrobial)

    Pleatco PRB50-IN-M replacement for 03FIL1600, 17-2380, RTL-50, 100533, 6540-471, 25391, 817-5000 & R173434 (Antimicrobial)

    Fits systems that use 5-inch diameter by 13 5/16-inch length filters Learn More
    $30.99 MSRP:  $38.72
  8. Pleatco PWW25L Replacement Pool and Spa Filter
  9. Tier1 brand replacement for 817-4050

    Tier1 brand replacement for 817-4050

    Fits the Waterway Teleweir 50 Learn More
    $19.99 MSRP:  $36.79
  10. Tier1 brand replacement for 817-4050 (Antimicrobial)

    Tier1 brand replacement for 817-4050 (Antimicrobial)

    Fits the Waterway Teleweir 50 Learn More
    $26.99 MSRP:  $37.81
  11. Pleatco PWW75-4 Pool and Spa Replacement Filter

    Pleatco PWW75-4 Pool and Spa Replacement Filter

    Fits the Waterway Pool 75 and Leisure Bay WW-50 Learn More
    $64.89 MSRP:  $80.99

11 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top