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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 105 total

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  • 54846 Tier1 Reverse Osmosis Tank Pressure Gauge

    54846 Tier1 Reverse Osmosis Tank Pressure Gauge

    $8.99 Retail Price:  $12.64
  • 6570090 Tier1 Plastic Tank Ball Valve
  • 6570590 Tier1 Plastic Tank Ball Valve

    6570590 Tier1 Plastic Tank Ball Valve

    $6.99 Retail Price:  $10.34
  • LF-BLR Tier1 Long-Reach Faucet - Chrome

    LF-BLR Tier1 Long-Reach Faucet - Chrome

    $17.99 Retail Price:  $26.32
  • LF-BLR-BN Tier1 Long-Reach Faucet - Brushed Nickel

    LF-BLR-BN Tier1 Long-Reach Faucet - Brushed Nickel

    $29.99 Retail Price:  $36.79
  • LF-BLRAG Tier1 Long-Reach Air-Gap Faucet - Chrome

    LF-BLRAG Tier1 Long-Reach Air-Gap Faucet - Chrome

    $18.99 Retail Price:  $34.72
  • TFM-50-A Tier1 Reverse Osmosis Membrane

    TFM-50-A Tier1 Reverse Osmosis Membrane

    $45.99 Retail Price:  $55.19
  • TPG-100 Tier1 Reverse Osmosis Tank Pressure Gauge
  • Funbottle-dfs-green Tier1 Water Bottle - Green

    EcoFriendly Water Bottle: Green FunBottle

    $9.99 Retail Price:  $12.99
  • IC6-38Q Tier1 Inline Water Filter

    IC6-38Q Tier1 Inline Water Filter

    Regular Price: $8.99

    Special Price: $7.05

  • P50-20 Tier1 Polypropylene Sediment Water Filter Cartridge
  • TIER1-P20-20 Whole House Sediment Water Filter

    P20-20 Tier1 Sediment Water Filter

    $7.99 Retail Price:  $9.19
  • CBC-20 Tier1 Water Filter Cartridge

    CBC-20 Tier1 Water Filter Cartridge

    Regular Price: $25.99

    Special Price: $20.05

  • CBC-20BB-WF Tier1 Water Filter Cartridge

    CBC-20BB-WF Tier1 Water Filter Cartridge

    $69.99 Retail Price:  $83.94
  • CTW-10-WF Tier1 Countertop Water Filter System

    CTW-10-WF Tier1 Countertop Water Filter System

    $52.99 Retail Price:  $63.24
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    $23.99 Retail Price:  $26.34
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    $40.99 Retail Price:  $62.09
  • IC6-14Q Tier1 Inline Water Filter
  • KDF55-10 Tier1 Water Filter

    KDF55-10 Tier1 Water Filter

    $24.99 Retail Price:  $27.34
  • KDF55-10BB Tier1 Water Filter
  • KDF85-10BB Tier1 Water Filter

    KDF85-10BB Tier1 Water Filter

    $83.99 Retail Price:  $86.24
  • KDF85-20 Tier1 Water Filter

    KDF85-20 Tier1 Water Filter

    $105.99 Retail Price:  $121.89
  • KDF-SHF Tier1 Shower Filter

    KDF-SHF Tier1 Shower Filter

    $29.99 Retail Price:  $36.79
  • P10-5 Tier1 Polypropylene Sediment Filter

    P10-5 Tier1 Polypropylene Sediment Filter

    Regular Price: $4.99

    Special Price: $2.55

  • P1-5 Tier1 Sediment Filter Cartridge

    P1-5 Tier1 Sediment Filter Cartridge

    Regular Price: $5.99

    Special Price: $2.05

  • P25 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • RO-1070-W14 Reverse Osmosis Bladder Tank - 14 Gallon

    RO-1070-W14 Reverse Osmosis Bladder Tank - 14 Gallon

    $136.99 Retail Price:  $159.84

Items 1 to 48 of 105 total

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