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

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Water Filters & Air Filters Brands

Whether you’re looking to replace your inline water filter or trying to find the best air purifiers, we can help you by providing quality filters for less. Discount Filter Store offers the top filter brands, such as PUR, Honeywell, and ZeroWater to help make sure that you have worry-free water. Our helpful experts are also here to make sure you find the filter you need. Give us a call at 1-800-277-3458, and we’ll answer your filter questions from reverse osmosis water filtration systems to air humidifiers, to get you to the product you need.

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Items 1 to 48 of 138 total

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  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • WP-30 Pentek Comparable Whole House Sediment Filter by Tier1
  • AP124 3M Aqua-Pure Comparable Whole House Filter Replacement Cartridge by Tier1
  • MAXETW-FF20 Watts Comparable C-MAX Whole House Water Filter Cartridge by Tier1
  • CB-45-2010 Hydronix Comparable Replacement Filter Cartridge by Tier1
  • W5W American Plumber Comparable Whole House Sediment Filter Cartridge by Tier1 (2-Pack)
  • AP420 3M Aqua-Pure Comparable Whole House Filter Replacement Cartridge by Tier1
  • Pentek ECP20-10 Replacement Water Filter Cartridge

    ECP20-10 Pentek Replacement Filter Cartridge

    $8.59 MSRP: $9.42
    Save 9%
  • Pentek ECP5-20 Replacement Water Filter Cartridge
  • Pentek P25-20 Whole House Replacement Sediment Filter Cartridge
  • Pentek P25 Whole House Replacement Sediment Filter Cartridge
  • PCC212 Pentek Replacement Filter Cartridge

    PCC212 Pentek Replacement Filter Cartridge

    $17.49 MSRP: $22.41
    Save 22%
  • Pentek PD-10-20 Whole House Replacement Sediment Water Filter
  • Pentek PD-25-20 Whole House Replacement Sediment Water Filter
  • Pentek PS20-20C Whole House Replacement Sediment Water Filter
  • Pentek PS5-10C Whole House Replacement Sediment Water Filter Cartridge
  • Pentek PS5-20C Whole House Replacement Sediment Water Filter Cartridge
  • Pentek R30-20 Replacement Water Filter Cartridge

    R30-20 Pentek Replacement Filter Cartridge

    $17.99 MSRP: $24.99
    Save 28%
  • RFC20-BB Pentek Carbon Filter Replacement Cartridge

    RFC20-BB Pentek Replacement Filter Cartridge

    $57.99 MSRP: $82.91
    Save 30%
  • WBA Culligan Whole House Filter Mounting Bracket

    WBA Culligan Whole House Filter Mounting Bracket

    $21.29
    MSRP: $30.99
    Save 31%
  • HARMSCO-801-20

    HARMSCO-801-20

    $7.99
    MSRP: $11.49
    Save 30%
  • PENTEK-CFBC-20

    PENTEK-CFBC-20

    $23.49
    MSRP: $29.31
    Save 20%
  • PENTEK-KO25G2S

    PENTEK-KO25G2S

    $6.05
    MSRP: $9.42
    Save 36%
  • PENTEK-KO25HE2

    PENTEK-KO25HE2

    $16.99
  • PENTEK-KO50G2S

    PENTEK-KO50G2S

    $6.19
    MSRP: $9.42
    Save 34%
  • PENTEK-KO50G4S

    PENTEK-KO50G4S

    $5.09
    MSRP: $5.85
    Save 13%
  • KO5G3S Pentek Polypropylene Bag Filter

    KO5G3S Pentek Polypropylene Filter Bags

    $4.99
    MSRP: $7.00
    Save 29%
  • OAC-20BB Pentek Oil Reduction Filter

    OAC-20BB Pentek Oil Reduction Water Filter

    $73.99
    MSRP: $85.20
    Save 13%
  • PENTEK-P-250

    PENTEK-P-250

    $33.99
    MSRP: $41.99
    Save 19%
  • PENTEK-P-250A

    PENTEK-P-250A

    $33.99
  • PENTEK-PCC218

    PENTEK-PCC218

    $23.99
    MSRP: $26.44
    Save 9%
  • PENTEK-PD-1-20

    PENTEK-PD-1-20

    $9.99
    MSRP: $11.72
    Save 15%
  • PENTEK-PD-1-40

    PENTEK-PD-1-40

    $21.99
  • PENTEK-PD-1-934

    PENTEK-PD-1-934

    $6.99
    MSRP: $8.15
    Save 14%
  • PENTEK-PD-25-30

    PENTEK-PD-25-30

    $16.99
  • PD-5-30 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-5-30 Pentek Whole House Sediment Filter Cartridge

    $15.99
    MSRP: $16.55
    Save 3%
  • PD-5-40 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-5-40 Pentek Whole House Sediment Filter Cartridge

    $18.99
    MSRP: $24.34
    Save 22%
  • PD-50-20 Pentek Whole House Replacement Sediment Filter Cartridge
  • PS1-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • PS20-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • ROM-230TN Pentek Reverse Osmosis Membrane

    ROM-230TN Pentek Reverse Osmosis Membrane

    $80.39
    MSRP: $118.99
    Save 32%
  • ROM-26T Pentek Reverse Osmosis Membrane

    ROM-26T Pentek Reverse Osmosis Membrane

    $73.99
    MSRP: $84.05
    Save 12%
  • SH144369 Pentek Bag Filter Housing Gauge (0-100 psi)

    SH144369 Pentek Bag Filter Housing Gauge (0-100 psi)

    $16.19
    MSRP: $29.99
    Save 46%
  • ST-1 Pentek Filter Housing - Stainless Steel

    ST-1 Pentek Filter Housing - Stainless Steel

    $167.99
    MSRP: $191.81
    Save 12%

Items 1 to 48 of 138 total

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