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When we protect your filter purchase with our No Worries Guarantee, we mean it!

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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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.

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  • Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    As Low As $7.00 Per Filter

  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    As Low As $23.83 Per Filter

  • Pentek ECP1-BB Replacement Water Filter Cartridge

    ECP1-BB Pentek Replacement Filter Cartridge

    As Low As $13.67 Per Filter

  • Pentek ECP20-20 Replacement Water Filter Cartridge

    ECP20-20 Pentek Replacement Filter Cartridge

    As Low As $11.25 Per Filter

  • Pentek ECP20-20BB Replacement Water Filter Cartridge

    ECP20-20BB Pentek Replacement Filter Cartridge

    As Low As $22.17 Per Filter

  • Pentek ECP20-BB Replacement Water Filter Cartridge

    ECP20-BB Pentek Replacement Filter Cartridge

    As Low As $12.75 Per Filter

  • PBH-410-1 Pentek Bag Filter Housing with 1-inch Inlet/Outlet

    PBH-410-1 Pentek Filter Bag Housing

    $123.99 Retail Price:  $126.34
  • PBH-410-1-5 Pentek Bag Filter Housing with 1.5-inch Inlet/Outlet
  • 10-212 Pentek UV Lamp

    10-212 Pentek UV Lamp

    $47.99 Retail Price:  $67.38
  • CBC-10 Pentek Replacement Filter Cartridge

    CBC-10 Pentek Replacement Filter Cartridge

    $15.99 Retail Price:  $18.34
  • EP-5 Pentek Replacement Filter Cartridge
  • Pentek 158114 10-inch Standard Filter Housing

    Pentek 158114 10-inch Standard Filter Housing

    $12.99 Retail Price:  $15.34
  • Pentek BN-410-200 Nylon Filter Bag

    Pentek BN-410-200 Nylon Filter Bag

    $11.99 Retail Price:  $14.34
  • Pentek BN-410-800 Nylon Filter Bag

    Pentek BN-410-800 Nylon Filter Bag

    $7.99 Retail Price:  $9.76
  • Pentek BN-420-100 Nylon Filter Bag

    Pentek BN-420-100 Nylon Filter Bag

    $10.99 Retail Price:  $13.67
  • Pentek BN-420-200 Nylon Filter Bag

    Pentek BN-420-200 Nylon Filter Bag

    $6.99 Retail Price:  $13.79
  • Pentek BN-420-400 Nylon Filter Bag

    Pentek BN-420-400 Nylon Filter Bag

    $10.99 Retail Price:  $13.79
  • Pentek BN-420-800 Nylon Filter Bag

    Pentek BN-420-800 Nylon Filter Bag

    $5.99 Retail Price:  $7.92
  • Pentek BPHE-410-50 Polypropylene High Efficiency Filter Bag
  • Pentek CFB-PB10 Lead & Cyst Carbon Filter

    Pentek CFB-PB10 Lead & Cyst Carbon Filter

    $14.99 Retail Price:  $17.12
  • Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    $23.99 Retail Price:  $25.29
  • Pentek KE10G2S Polyester Filter Bag

    Pentek KE10G2S Polyester Filter Bag

    $5.99 Retail Price:  $7.12
  • Pentek KE25G4S Polyester Filter Bag

    Pentek KE25G4S Polyester Filter Bag

    $5.99 Retail Price:  $6.89
  • Pentek KO100G1S Polypropylene Filter Bag

    Pentek KO100G1S Polypropylene Filter Bag

    $5.99 Retail Price:  $8.04
  • Pentek KO10G2S Polyester Filter Bag

    Pentek KO10G2S Polyester Filter Bag

    $6.99 Retail Price:  $8.04
  • Pentek KO1HE3 Polypropylene High Efficiency Filter Bag

    Pentek KO1HE3 Polypropylene High Efficiency Filter Bag

    $16.99 Retail Price:  $19.34
  • Pentek KO5G4S Polypropylene Filter Bag

    Pentek KO5G4S Polypropylene Filter Bag

    $4.99 Retail Price:  $6.89

Items 97 to 144 of 521 total

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