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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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  1. ADO-RP SteriPEN Portable UV System
  2. ADOSC-RP SteriPEN Portable UV System
  3. EM-MM SteriPEN Portable UV System

    EM-MM SteriPEN Portable UV System

    $43.99 Retail Price:  $52.89
  4. FAF-ADP SteriPEN FitsAll Water Bottle Filter

    FAF-ADP SteriPEN FitsAll Water Bottle Filter

    Fits both narrow and wide mouth water containers, including canteens and commercial water bottles from SIGG, Klean Kanteen, Nalgene, and many more Learn More
    $12.99 Retail Price:  $17.24
  5. FRDM-RP-EF SteriPEN Portable UV System

    FRDM-RP-EF SteriPEN Portable UV System

    Regular Price: $97.99

    Special Price: $79.05

  6. JY-RP SteriPEN Portable UV System
  7. JY-UPF-RP SteriPEN Portable UV System

    JY-UPF-RP SteriPEN Portable UV System

    Fits both narrow and wide mouth water containers, including canteens and commercial water bottles from SIGG, Klean Kanteen, Nalgene, and many more. Learn More
  8. SC-AUTO SteriPEN Portable UV System Car Charging Adapter

    SC-AUTO SteriPEN Portable UV System Car Charging Adapter

    Fits the SteriPEN Adventurer solar charging case Learn More
  9. SIDE-SYS SteriPEN Portable UV System

    SIDE-SYS SteriPEN Portable UV System

    $86.99 Retail Price:  $102.34
  10. SP-PF SteriPEN Wide Mouth Water Bottle Pre-Filter

    SP-PF SteriPEN Wide Mouth Water Bottle Pre-Filter

    Fits containers with minimum 1.75-inch diameter opening, like Nalgene wide-mouth bottles and others Learn More
    $11.99 Retail Price:  $16.09
  11. SP-RC SteriPEN Water Bottle Replacement Filter Cartridge

    SP-RC SteriPEN Water Bottle Replacement Filter Cartridge

    Fits the SterPEN pre-filter and FitsAll filter Learn More
    $6.29 Retail Price:  $9.53
  12. SP-SYS SteriPEN Classic UV Water Purifier with Pre-Filter and Nalgene Water Bottle
  13. SPPF-RP SteriPEN Portable UV System

    SPPF-RP SteriPEN Portable UV System

    Fits containers with minimum 1.75-inch diameter opening, like Nalgene wide-mouth bottles and others Learn More
    $59.99 Retail Price:  $71.29
  14. TRC-MM SteriPEN Portable UV System

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