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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

Cuno Water Filters

Whether producing a quality beverage or cleaning dishware, consistent clean and clear water is critical. 3M’s Cuno® brand of water filters are designed to filter out those harmful impurities leaving you with safe and fresh drinking water throughout your entire home. Whether it’s an inline water filter or whole house water filter you’re looking for, Cuno’s® got you covered. Check out our huge selection of Cuno® brand water filters below.

In addition to our huge offering of Cuno water filters, Discount Filter Store also offers a 100% Price Match Guarantee on every one of our Cuno® water filter products. That means if you find a water filter for less than our listed price, we’ll match the lower price, guaranteed. Check out our huge selection of Cuno® brand water filters below. Don’t put up with bad tasting and dirty water in your home, switch to a Cuno® water filter today!

40 Item(s)

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  • Cuno HF90-S Replacement Filter Cartridge

    Cuno HF90-S Replacement Filter Cartridge

    $185.99
    MSRP: $243.79
    Save 24%
  • HF40-S Cuno Whole House Filter Replacement Cartridge

    HF40-S Cuno Whole House Filter Replacement Cartridge

    $105.99
    MSRP: $123.04
    Save 14%
  • HF25-S Cuno Whole House Filter Replacement Cartridge

    HF25-S Cuno Whole House Filter Replacement Cartridge

    $67.99
    MSRP: $69.56
    Save 2%
  • HF25 Cuno Whole House Filter Replacement Cartridge

    HF25 Cuno Whole House Filter Replacement Cartridge

    $49.05
    MSRP: $62.66
    Save 22%
  • HF20-S Cuno Whole House Filter Replacement Cartridge

    HF20-S Cuno Whole House Filter Replacement Cartridge

    $68.99
    MSRP: $86.24
    Save 20%
  • HF20-MS Cuno Whole House Filter Replacement Cartridge

    HF20-MS Cuno Whole House Filter Replacement Cartridge

    $71.99
    MSRP: $73.36
    Save 2%
  • HF20 Cuno Whole House Filter Replacement Cartridge

    HF20 Cuno Whole House Filter Replacement Cartridge

    $50.05
    MSRP: $80.49
    Save 38%
  • HF10-MS Cuno Whole House Filter Replacement Cartridge

    HF10-MS Cuno Whole House Filter Replacement Cartridge

    $50.05
    MSRP: $68.30
    Save 27%
  • HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    $35.99
    MSRP: $43.69
    Save 18%
  • HF45-S Cuno Whole House Filter Replacement Cartridge

    HF45-S Cuno Whole House Filter Replacement Cartridge

    $103.99
    MSRP: $120.39
    Save 14%
  • HF60-S Cuno Whole House Filter Replacement Cartridge

    HF60-S Cuno Whole House Filter Replacement Cartridge

    $138.99
    MSRP: $160.99
    Save 14%
  • SWC1350-C Cuno Whole House Filter Replacement Cartridge

    SWC1350-C Cuno Whole House Water Filter Cartridge

    $60.99
    MSRP: $81.64
    Save 25%
  • SWC1350 Cuno Whole House Filter Replacement Cartridge

    SWC1350 Cuno Whole House Water Filter Cartridge

    $67.99
    MSRP: $81.64
    Save 17%
  • P-124B Cuno Whole House Filter Replacement Cartridge

    P-124B Cuno Whole House Water Filter Cartridge

    $97.05
    MSRP: $128.79
    Save 25%
  • HF95-S Cuno Whole House Water Filter Cartridge

    HF95-S Cuno Whole House Water Filter Cartridge

    $195.99
    MSRP: $227.69
    Save 14%
  • HF95 Cuno Whole House Filter Replacement Cartridge

    HF95 Cuno Whole House Water Filter Cartridge

    $197.99
    MSRP: $229.99
    Save 14%
  • HF8-S Cuno Whole House Filter Replacement Cartridge

    HF8-S Cuno Whole House Water Filter Cartridge

    $39.05
    MSRP: $62.09
    Save 37%
  • HF65-S Cuno Whole House Filter Replacement Cartridge

    HF65-S Cuno Whole House Filter Replacement Cartridge

    $112.05
    MSRP: $155.81
    Save 28%
  • HF65 Cuno Whole House Filter Replacement Cartridge

    HF65 Cuno Whole House Filter Replacement Cartridge

    $127.99
    MSRP: $148.80
    Save 14%
  • CS-51 Cuno Inline Filter

    CS-51 Cuno Inline Filter

    $39.99
    MSRP: $42.34
    Save 6%
  • CS-11 Cuno Replacement Filter Cartridge

    CS-11 Cuno Replacement Filter Cartridge

    $57.99
    MSRP: $60.94
    Save 5%
  • CFS8110 Cuno Whole House Filter Replacement Cartridge

    CFS8110 Cuno Whole House Filter Replacement Cartridge

    $56.99
    MSRP: $61.97
    Save 8%
  • CFS517 Cuno Whole House Filter Replacement Cartridge

    CFS517 Cuno Whole House Filter Replacement Cartridge

    $62.05
    MSRP: $87.39
    Save 29%
  • CFS22 Cuno Whole House Filter Housing

    CFS22 Cuno Whole House Filter Housing

    $128.99
    MSRP: $148.34
    Save 13%
  • CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99
    MSRP: $101.19
    Save 5%
  • CFS117-S Cuno Whole House Filter Replacement Cartridge

    CFS117-S Cuno Whole House Filter Replacement Cartridge

    $32.05
    MSRP: $40.24
    Save 20%
  • CFS110 Cuno Whole House Filter Replacement Cartridge

    CFS110 Cuno Whole House Filter Replacement Cartridge

    $14.99
    MSRP: $16.09
    Save 7%
  • CFS02S Cuno Whole House Filter Housing

    CFS02S Cuno Whole House Water Filter Housing

    $184.49
    MSRP: $214.46
    Save 14%
  • CFS01S Cuno Whole House Filter Housing

    CFS01S Cuno Whole House Water Filter Housing

    $132.05
    MSRP: $152.94
    Save 14%
  • CFS8112 Cuno Whole House Filter Replacement Cartridge

    CFS8112 Cuno Whole House Filter Replacement Cartridge

    $63.05
    MSRP: $69.56
    Save 9%
  • CFS8112-S Cuno Whole House Filter Replacement Cartridge

    CFS8112-S Cuno Whole House Filter Replacement Cartridge

    $70.99
    MSRP: $94.29
    Save 25%
  • CFS9812X-S Cuno Whole House Filter Replacement Cartridge
  • CFS9812X Cuno Whole House Filter Replacement Cartridge
  • CFS9720 Cuno Whole House Filter Replacement Cartridge

    CFS9720 Cuno Whole House Filter Replacement Cartridge

    $45.05
    MSRP: $61.97
    Save 27%
  • CFS9112 Cuno Whole House Filter Replacement Cartridge

    CFS9112 Cuno Whole House Filter Replacement Cartridge

    $52.05
    MSRP: $71.29
    Save 27%
  • CFS8812X-S Cuno Whole House Filter Replacement Cartridge
  • CFS8812X Cuno Whole House Filter Replacement Cartridge
  • CFS8720-S Cuno Whole House Filter Replacement Cartridge

    CFS8720-S Cuno Whole House Filter Replacement Cartridge

    $58.05
    MSRP: $64.39
    Save 10%
  • CFS8720 Cuno Whole House Filter Replacement Cartridge

    CFS8720 Cuno Whole House Filter Replacement Cartridge

    $52.05
    MSRP: $61.97
    Save 16%
  • P195BN Cuno Water Filter Cartridge

    P195BN 3M Cuno Water Filter Cartridge

    $176.99
    MSRP: $237.99
    Save 26%

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