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Water Filtration Systems & Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

Items 1 to 48 of 271 total

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  • P10-5 Tier1 Polypropylene Sediment Filter

    P10-5 Tier1 Polypropylene Sediment Filter

    Regular Price: $4.99

    Special Price: $2.55

  • PX05-4-78 Purtrex Replacement Filter Cartridge

    PX05-4-78 Purtrex Replacement Water Filter Cartridge

    $2.99 Retail Price:  $5.74
  • KPPA Klean Kanteen Sippy-Top Bottle Adapter
  • PX20-9-78 Purtrex Replacement Filter Cartridge

    PX20-9-78 Purtrex Water Filter Cartridge

    $3.99 Retail Price:  $5.74
  • PX30-9-78 Purtrex Replacement Filter Cartridge
  • FPMB20-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB20-978 Watts Flo-Pro Replacement Water Filter

    $3.99 Retail Price:  $5.16
  • SBC-25-1001 Hydronix Sediment Water Filter Cartridge
  • KE25G1S Pentek Polyester Felt Bag Filter

    KE25G1S Pentek Polyester Felt Filter Bag

    $4.09 Retail Price:  $7.00
  • KO50G4S Pentek Polypropylene Bag Filter

    KO50G4S Pentek Polypropylene Filter Bag

    $4.99 Retail Price:  $5.85
  • PX05-20 Purtrex Replacement Filter Cartridge

    PX05-20 Purtrex Replacement Water Filter

    $4.99 Retail Price:  $9.19
  • PX10-9-78 Purtrex Replacement Filter Cartridge

    PX10-9-78 Purtrex Replacement Water Filter

    $4.99 Retail Price:  $8.04
  • PX20-20 Purtrex Replacement Filter Cartridge

    PX20-20 Purtrex Replacement Water Filter

    $4.99 Retail Price:  $8.04
  • PX50-9-78 Purtrex Replacement Filter Cartridge

    PX50-9-78 Purtrex Replacement Water Filter

    $4.99 Retail Price:  $6.89
  • PX75-20 Purtrex Replacement Filter Cartridge

    PX75-20 Purtrex Replacement Water Filter Cartridge

    $4.99 Retail Price:  $8.04
  • FPMB5-978 Watts Flo-Pro Replacement Filter Cartridge
  • KPPS Klean Kanteen Sport Cap 2.0
  • BP-410-1 Pentek Polypropylene Bag Filter

    BP-410-1 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $7.00
  • BP-410-200 Pentek Polypropylene Bag Filter

    BP-410-200 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $7.00
  • BP-410-25 Pentek Polypropylene Bag Filter

    BP-410-25 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $7.00
  • BP-410-5 Pentek Polypropylene Bag Filter

    BP-410-5 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $7.00
  • BP-420-10 Pentek Polypropylene Bag Filter

    BP-420-10 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $8.15
  • BP-420-100 Pentek Polypropylene Bag Filter

    BP-420-100 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $8.15
  • BP-420-200 Pentek Polypropylene Bag Filter

    BP-420-200 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $7.00
  • BP-420-25 Pentek Polypropylene Bag Filter

    BP-420-25 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $7.00
  • BP-420-50 Pentek Polypropylene Bag Filter

    BP-420-50 Pentek Polypropylene Bag Filter

    $4.99 Retail Price:  $8.15
  • CB-25-0505 Hydronix Replacement Carbon Water Filter

    CB-25-0505 Hydronix Replacement Carbon Water Filter

    $4.99 Retail Price:  $8.04
  • PE100G4S Pentek Polyester Felt Filter Bags

    PE100G4S Pentek Polyester Felt Filter Bag

    $4.99 Retail Price:  $9.19
  • KE100G2S Pentek Polyester Felt Bag Filter

    KE100G2S Pentek Polyester Felt Bag Filter

    $5.09 Retail Price:  $8.15
  • KE5G2S Pentek Bag Filter

    KE5G2S Pentek Bag Filter

    $5.09 Retail Price:  $8.15
  • GX01-9-78 Hytrex Replacement Filter Cartridge
  • GX75-9-78 Hytrex Replacement Filter Cartridge

    GX75-9-78 Hytrex Water Filter Cartridge

    $5.49 Retail Price:  $8.61
  • W2123100 Doulton Wing Nut

    W2123100 Doulton Long Mount Water Filter Wing Nut

    $5.99 Retail Price:  $8.34
  • ICF-6 Hydronix Inline Coconut Carbon Filter

    ICF-6 Hydronix Inline Coconut Carbon Filter

    $5.99 Retail Price:  $9.19

Items 1 to 48 of 271 total

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