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

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

Call Toll-Free: 1-800-277-3458

My Cart:

0 item(s) - $0.00
You have no items in your shopping cart.

FREE SHIPPING on orders over $39

Water Filtration Parts & Accessories From Tier1

Save on Tier1 Parts and Accessories at Discountfilterstore.com

Items 1 to 25 of 45 total

Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
  1. WDF-103SS Tier1 Long-Reach Stainless Steel Faucet

    WDF-103SS Tier1 Long-Reach Stainless Steel Faucet

    Can be used with any under sink or reverse osmosis filter system Learn More
    $25.99
  2. FQMC1044 Tier1 NPT Male Quick Connect Fitting

    FQMC1044 Tier1 NPT Male Quick Connect Fitting

    1/4-inch Tube x 1/4-inch Male NPT Learn More
    $3.99
  3. CLP-25W Tier1 Inline Water Filter & Membrane Housing Clip

    CLP-25W Tier1 Inline Water Filter & Membrane Housing Clip

    Fits with most 2.5-inch wide inline water filters Learn More
    $2.99
  4. CLP-20W Tier1 Inline Water Filter Clip

    CLP-20W Tier1 Inline Water Filter Clip

    Fits with most two-inch wide inline water filters Learn More
    $2.99
  5. TPG-100 Tier1 Reverse Osmosis Tank Pressure Gauge
  6. QMP502-38 Tier1 Compression Diverter Valve

    QMP502-38 Tier1 Compression Diverter Valve

    Fits standard 3/8-inch water lines Learn More
    $12.99
  7. PGB25100L Tier1 Pressure Gauge
  8. PFR402Q-500 Tier1 Inline Flow Restrictor
  9. PFR402Q-150 Tier1 Inline Flow Restrictor
  10. OR-LUBRICANT-SM Tier1 Food-Grade Silicone O-Ring Lubricant
  11. FQMC1042 Tier1 NPT Male Quick Connect Fitting

    FQMC1042 Tier1 NPT Male Quick Connect Fitting

    1/4-inch Tube x 1/8-inch Male NPT Learn More
    $4.99
  12. ECC-10 Tier1 Empty Water Filter Cartridges

    ECC-10 Tier1 Empty Water Filter Cartridges

    Fits into filtration systems that use 2.5x10 inch filter cartridges Learn More
    $5.99
  13. PI2308S Tier1 Two-Way Divider (1/4 Inch with Quick Connect Fittings)
  14. Tier1 Greensand Water Treatment Media for Iron, Manganese, and Hydrogen Sulfide
  15. OR-34 Tier1 O-Ring

    OR-34 Tier1 O-Ring

    Sized at 4 inches and fits into most standard whole house water filtration system housings Learn More
    $0.99
  16. OR-100 Tier1 Lubricated O-Ring

    OR-100 Tier1 Lubricated O-Ring

    Fits into 10 and 20 inch Big Blue water filtration system housings Learn More
    $2.99
  17. FMS-1 Tier1 Water Flow Switch Relay Control

    FMS-1 Tier1 Water Flow Switch Relay Control

    Features 1/4 inch Quick Connect fittings Learn More
    $12.99
  18. FMS-2 Tier1 Water Flow Sensor

    FMS-2 Tier1 Water Flow Sensor

    Sized at .75 inches by 2.52 inches Learn More
    $15.99
  19. ECW-20BB Tier1 Empty Water Filter Cartridges

    ECW-20BB Tier1 Empty Water Filter Cartridges

    Fits into filtration systems that use 4.5x20 inch filter cartridges Learn More
    $18.99
  20. ECC-10BB Tier1 Empty Water Filter Cartridges

    ECC-10BB Tier1 Empty Water Filter Cartridges

    Fits into filtration systems that use 4.5x9.75 inch filter cartridges Learn More
    $14.99
  21. ECC-20 Tier1 Empty Water Filter Cartridges

    ECC-20 Tier1 Empty Water Filter Cartridges

    Fits into filtration systems that use 2.5x20 inch filter cartridges Learn More

    Regular Price: $11.99

    Special Price: $8.05

  22. OR-LUBRICANT-LG Tier1 Food-Grade Silicone O-Ring Lubricant
  23. M34 Tier1 Plastic Hex Nipple
  24. M100 Tier1 Plastic Hex Nipple
  25. BA-TDS-38 Tier1 Inline TDS Monitor

    BA-TDS-38 Tier1 Inline TDS Monitor

    Fits standard 3/8-inch water lines Learn More
    $26.99