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

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Water Filters by Harmsco

A simple, convenient way to have clean drinking water with a push of a button.

From commercial grade water filters to residential water filters Harmsco® has all your water filter replacement needs, conveniently in one place. At DiscountFilterStore.com you’ll find over a dozen of Harmsco’s best selling water filter products at prices guaranteed to beat the big box stores. If they don’t, we’ll match the lower price, so no matter what kind of water filter or filtration product you’re looking for, whether it’s an Under Sink Water Filter or a Whole House Water Filter you can be confident you’re getting the absolute best deal.

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  • 801-20 Harmsco Replacement Filter Cartridge

    801-20 Harmsco Replacement Filter Cartridge

    $7.99
    MSRP: $11.49
    Save 30%
  • WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge
  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter
  • PP-BB-10-1 Harmsco Calypso Blue Water Filter

    PP-BB-10-1 Harmsco Calypso Blue Water Filter

    $39.99
    MSRP: $58.64
    Save 32%
  • 931-5 Harmsco Polyester Sediment Filter Cartridge

    931-5 Harmsco Polyester Sediment Filter Cartridge

    $28.59
    MSRP: $38.99
    Save 27%
  • HARMSCO-550-S

    HARMSCO-550-S

    $28.99
    MSRP: $35.69
    Save 19%
  • PP-S-1 Harmsco Replacement Filter Cartridge

    PP-S-1 Harmsco Replacement Filter Cartridge

    $19.49
    MSRP: $24.71
    Save 21%
  • PO-25-G2PS-EA Harmsco Bag Filter

    PO-25-G2PS-EA Harmsco Filter Bag

    $22.99
    MSRP: $25.34
    Save 9%
  • HC40-5 Harmsco Replacement Filter Cartridge

    HC40-5 Harmsco Replacement Filter Cartridge

    $92.99
    MSRP: $95.34
    Save 2%
  • HB-20-5W Harmsco Calypso Blue Replacement Filter Cartridge

    HB-20-5W Harmsco Calypso Blue Replacement Filter Cartridge

    $31.99
    MSRP: $36.79
    Save 13%
  • HB-20-50W Harmsco Calypso Blue Replacement Filter Cartridge
  • HB-20-20W Harmsco Calypso Blue Replacement Filter Cartridge
  • HB-20-1W Harmsco Calypso Blue Replacement Filter Cartridge
  • HB-10-5W Harmsco Calypso Blue Replacement Filter Cartridge
  •  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge
  • Harmsco PO-25-G1PS-EA Polypropylene Filter Bag

    Harmsco PO-25-G1PS-EA Polypropylene Filter Bag

    $18.99
    MSRP: $21.34
    Save 11%

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