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

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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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41 Item(s)

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  • P1 Pentek 10 x 2.5-inch Whole House Sediment Water Filter Replacement
  • PD-1-934-Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PS1-10C Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PX01-9-78 Purtrex Comparable Whole House Sediment Water Filter by Tier1
  • SDC-25-0501 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • P1-20 Pentek Comparable Sediment Water Filter by Tier1

    P1-20 Pentek Comparable Sediment Water Filter by Tier1

    $5.99 MSRP: $10.99
    Save 45%
  • SDC-25-2001 Hydronix Comparable Sediment Water Filter by Tier1
  • SWC-25-2001 Hydronix Comparable Whole House Sediment Water Filter by Tier 1
  • PD-1-20 Pentek Comparable Sediment Water Filter by Tier1

    PD-1-20 Pentek Comparable Sediment Water Filter by Tier1

    $5.99 MSRP: $10.99
    Save 45%
  • PS1-20C Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PX01-20 Purtrex Comparable Whole House Sediment Water Filter by Tier1
  • SPC-25-1001 Hydronix Pleated Sediment Filter

    SPC-25-1001 Hydronix Pleated Sediment Water Filter

    $6.99 MSRP: $8.04
    Save 13%
  • Pentek P1 Polyproplyene Water Filter (10 x 2 1/2)
  • PS1-20C Pentek Sediment Water Filter

    PS1-20C Pentek Sediment Water Filter

    $7.99
    MSRP: $13.55
    Save 41%
  • WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  • Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    $8.99 MSRP: $10.57
    Save 15%
  • DGD-2501 Pentek Comparable Whole House Filter by Tier1
  • SDC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • RS16 Omnifilter Comparable Whole House Sediment Water Filter by Tier1
  • DGD-2501 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • Pentek BPH-410-1 Polypropylene High Efficiency Filter Bag
  • PS1-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • AP1001 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • AP-GRMB-01PP-10UB 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • GX01-9-78 Hytrex Comparable Whole House Sediment Water Filter by Tier1
  • BP-410-1 Pentek Polypropylene Bag Filter

    BP-410-1 Pentek Polypropylene Bag Filter

    $4.99
    MSRP: $7.00
    Save 29%
  • P1-5 Tier1 Sediment Filter Cartridge

    P1-5 Tier1 Sediment Filter Cartridge

    $4.99
    MSRP: $8.34
    Save 40%
  • Purtrex PX01-4-78 Polypropylene Sediment Filter

    Purtrex PX01-4-78 Polypropylene Sediment Filter

    $4.99
    MSRP: $5.16
    Save 3%
  • PX01-9-78 Purtrex Replacement Filter Cartridge

    PX01-9-78 Purtrex Replacement Filter Cartridge

    $5.09
    MSRP: $8.99
    Save 43%
  • GX01-9-78 Hytrex Replacement Filter Cartridge

    GX01-9-78 Hytrex Replacement Water Filter Cartridge

    $5.49
    MSRP: $8.61
    Save 36%
  • BP-420-1 Pentek Polypropylene Bag Filter

    BP-420-1 Pentek Polypropylene Bag Filter

    $5.99
    MSRP: $8.15
    Save 27%
  • PD-1-934 Pentek Whole House Replacement Sediment Filter Cartridge
  • SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    $6.99
    MSRP: $8.04
    Save 13%
  • SBC-25-1001 Hydronix Sediment Water Filter Cartridge
  • SDC-25-1001 Hydronix Sediment Water Filter Cartridge
  • PX01-20 Purtrex Replacement Filter Cartridge

    PX01-20 Purtrex Replacement Water Filter Cartridge

    $7.99
    MSRP: $10.34
    Save 23%
  • SWC-25-1001 Hydronix String Wound Sediment Water Filter
  • AP-GRMB-01PP-10UB Whole House Replacement Cartridge by 3M Aqua-Pure
  • GX01-20 Hytrex Replacement Filter Cartridge

    GX01-20 Hytrex Water Filter Cartridge

    $8.99
    MSRP: $12.64
    Save 29%
  • PD-1-20 Pentek Whole House Replacement Sediment Filter Cartridge
  • CB-25-1001 Hydronix Carbon Water Filter

    CB-25-1001 Hydronix Carbon Water Filter

    $9.99
    MSRP: $13.79
    Save 28%

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