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Water Filtration

Water Filtration for the whole home and at-the-sink. Shop complete systems, filter housings and cartridges, RO drinking water, and maintenance parts to improve taste, reduce chlorine/chloramine, and protect fixtures and appliances.

Featured brands: 3M, American Granby, Campbell, Elkay, EWS (Environmental Water Systems), The Source (twistIIClean), and Zurn Wilkins. Browse each brand below or filter to the exact type you need.

Shop by need

  • Whole-home systems: carbon filtration for city water; options with salt-free conditioning to help with scale (model dependent)
  • Under-sink drinking water: high-flow faucet filters, compact multi-stage kits, and RO (reverse osmosis) systems
  • Filter housings & cartridges: standard and high-flow sizes, sediment, carbon block/GAC, specialty media
  • Accessories & parts: install kits, valves, gauges, O-rings, wrenches, and replacement cartridges

Quick choosing guide

  1. Start with your source: municipal (chlorine/chloramine) vs well water—match filters or systems accordingly.
  2. Pick the application: whole-home (showers, laundry, appliances) or point-of-use (drinking/cooking at the sink).
  3. Size for flow: select system/house size to maintain pressure; match cartridge size (10", 20", “BB”) and micron rating to your goal.
  4. Taste vs maximum reduction: high-flow carbon for everyday taste/odor vs RO for maximum dissolved-solid reduction at a faucet.
  5. Plan maintenance: note change intervals (typically 6–12 months for cartridges; multi-year media on whole-home units).


  • EWS TT1054-V2 electronic controller detail
    EWS TT1054-V2 twin-tank salt softener system

    EWS TT1054-V2 Twin-Tank Salt Softener System

    EWS
    $ 2,985.00 - $ 2,985.00
    $ 2,985.00
    $ 2,985.00 - $ 2,985.00
    $ 2,985.00

    EWS TT1054 Twin-Tank Salt Softener System The EWS TT1054 is a powerful, efficient twin-tank water softener built for homes with rough water. With d...

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    $ 2,985.00 - $ 2,985.00
    $ 2,985.00
    $ 2,985.00 - $ 2,985.00
    $ 2,985.00
  • EWS M/GAC1035 CWL systems media replacement kit

    EWS - CWL Systems Media Replacement Kits

    EWS
    $ 1,244.25 - $ 4,188.75
    $ 1,244.25 - $ 4,188.75
    $ 1,244.25 - $ 4,188.75
    $ 1,244.25

    CWL Systems Media Replacement Kits Media replacements kits require some assembly. 100% pure granular activated carbon (GAC) – no silver impregnati...

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    $ 1,244.25 - $ 4,188.75
    $ 1,244.25 - $ 4,188.75
    $ 1,244.25 - $ 4,188.75
    $ 1,244.25
  • EWS T-M/GAC-SPECTRUM replacement carbon tank for CWL Spectrum whole house systems

    EWS - CWL Filtration – Replacement Carbon Whole Home Systems for CWL Spectrum (all from 2008 - 2017)

    EWS
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25

    CWL Filtration Tanks – Replacement Carbon Tanks for Whole Home Systems The CWL Filtration series provides high-grade carbon filtration for whole-ho...

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    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
  • EWS T-M/GAC1354 replacement carbon tank for CWL-1354 whole house system
    EWS CWL replacement carbon filtration tank for whole house systems

    EWS - CWL Filtration Tanks – Replacement Carbon Whole House Systems for CWL-1354

    EWS
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25

    CWL Filtration Tanks – Replacement Carbon Tanks for Whole Home Systems The CWL Filtration Tank series provides high-grade carbon filtration for who...

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    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
  • EWS SET.RU300C18 replacement filter set for RU300C18 system

    EWS - SET.RU300C18 - Replacement Filter for RU300C18

    EWS
    $ 269.25 - $ 269.25
    $ 269.25
    $ 269.25 - $ 269.25
    $ 269.25

    Replacement filter set for RU300C18 .

    $ 269.25 - $ 269.25
    $ 269.25
    $ 269.25 - $ 269.25
    $ 269.25
  • EWS F.SET.DWS-UV replacement filter set with UV lamp for DWS-UV under sink system

    EWS -F.SET.DWS-UV – Replacement Filter Set with UV Lamp for Under Sink EWS DWS-UV

    EWS
    $ 351.75 - $ 351.75
    $ 351.75
    $ 351.75 - $ 351.75
    $ 351.75

    F.SET.DWS-UV – Replacement Filter Set with UV Lamp for EWS DWS-UV The F.SET.DWS-UV is the complete replacement kit for the EWS DWS-UV Essential Dri...

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    $ 351.75 - $ 351.75
    $ 351.75
    $ 351.75 - $ 351.75
    $ 351.75
  • EWS T-M/GAC-SPECTRUM replacement carbon tank for CWL Spectrum whole house systems
    EWS CWL replacement carbon filtration tank for whole house systems

    EWS - CWL Filtration Tanks – Replacement Carbon Tanks for Whole House Systems CWL-SPECTRUM-V2 (2022 - )

    EWS
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25

    CWL Filtration Tanks – Replacement Carbon Tanks for Whole Home Systems The CWL Filtration Tank series provides high-grade carbon filtration for who...

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    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
  • EWS V2 whole house water filtration system shown with people for scale
    EWS V2 whole house water filtration system front view

    EWS - CWL-1465-V2 - CWL Chloramine Treatment Whole House Water Filtration System

    EWS
    $ 4,717.50 - $ 4,717.50
    $ 4,717.50
    $ 4,717.50 - $ 4,717.50
    $ 4,717.50

    EWS - CWL-1465-V2 - CWL Chloramine Treatment Whole Home Water Filtration System Engineered to handle chloramine and a wide suite of contaminants, t...

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    $ 4,717.50 - $ 4,717.50
    $ 4,717.50
    $ 4,717.50 - $ 4,717.50
    $ 4,717.50
  • EWS V2 whole house water filtration system shown with people for scale
    EWS V2 whole house water filtration system front view

    EWS - CWL-1665-V2-1.5 - Whole House Water Filtration System - Large Home or Facility

    EWS
    $ 7,867.50 - $ 7,867.50
    $ 7,867.50
    $ 7,867.50 - $ 7,867.50
    $ 7,867.50

    Whole Home Filtration & Conditioning – CWL-1665-V2-1.5 The CWL-1665-V2-1.5 is designed for large homes, estates, or light commercial facilities...

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    $ 7,867.50 - $ 7,867.50
    $ 7,867.50
    $ 7,867.50 - $ 7,867.50
    $ 7,867.50
  • EWS 1035 V2 whole house water treatment system shown with people for scale
    EWS 1035 V2 whole house water treatment system front view

    EWS - CWL-1035-V2 - Whole House Water Filtration System - Smaller home, Less Usage (Condo)

    EWS
    $ 2,842.50 - $ 2,842.50
    $ 2,842.50
    $ 2,842.50 - $ 2,842.50
    $ 2,842.50

    Specialty Whole Home Water Filtration Appliance for Small and Part-Time Residences (Apartments, Condominiums, Townhomes, Vacation Homes). Central h...

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    $ 2,842.50 - $ 2,842.50
    $ 2,842.50
    $ 2,842.50 - $ 2,842.50
    $ 2,842.50
  • EWS V2 whole house water filtration system shown with people for scale
    EWS V2 whole house water filtration system front view

    EWS - CWL-SPECTRUM-V2 - CWL Series Whole House Water Filtration System

    EWS
    $ 3,517.50 - $ 3,517.50
    $ 3,517.50
    $ 3,517.50 - $ 3,517.50
    $ 3,517.50

    The Most Versatile & Best-Selling Whole House Water Filtration Appliance. Central heat and A/C are standard in most homes – now enjoy the stan...

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    $ 3,517.50 - $ 3,517.50
    $ 3,517.50
    $ 3,517.50 - $ 3,517.50
    $ 3,517.50
  • EWS V2 whole house filtration system media detail
    EWS V2 whole house water filtration system front view

    EWS-1465-V2 - Chloramine Treatment Whole House Water Filtration System Plus Conditioning

    EWS
    $ 5,471.25 - $ 5,471.25
    $ 5,471.25
    $ 5,471.25 - $ 5,471.25
    $ 5,471.25

    EWS 1465 Larger Whole House Water Filtration & Conditioning System Based on Usage for Homes with 4 or More Bathrooms and 4 or More People.  ...

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    $ 5,471.25 - $ 5,471.25
    $ 5,471.25
    $ 5,471.25 - $ 5,471.25
    $ 5,471.25
  • EWS 1035 V2 whole house water treatment system shown with people for scale
    EWS 1035 V2 whole house water treatment system front view

    EWS-1035-V2 Whole House Filtration + Salt-Free Conditioning (Condo)

    EWS
    $ 3,221.25 - $ 3,221.25
    $ 3,221.25
    $ 3,221.25 - $ 3,221.25
    $ 3,221.25

    EWS-1035-V2 Whole-Home Water Filtration & Salt-Free Conditioning Designed for condos, townhomes, apartments, and smaller single-family homes wi...

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    $ 3,221.25 - $ 3,221.25
    $ 3,221.25
    $ 3,221.25 - $ 3,221.25
    $ 3,221.25
  • EWS V2 whole house filtration system media detail
    EWS V2 whole house water filtration system front view

    EWS-SPECTRUM-V2 - Whole House Water Filtration System Plus Conditioning

    EWS
    $ 4,346.25 - $ 4,346.25
    $ 4,346.25
    $ 4,346.25 - $ 4,346.25
    $ 4,346.25

    Whole Home Water Filtration – EWS Spectrum V2 with Conditioning The EWS Spectrum V2 Whole Home Water Filtration & Conditioning System is a prem...

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    $ 4,346.25 - $ 4,346.25
    $ 4,346.25
    $ 4,346.25 - $ 4,346.25
    $ 4,346.25
  • EWS RT1035-V2 whole house water softener system with 1.0 cu ft resin tank

    EWS RT1035-V2 – Whole House Water Softener System (1.0 cu. ft. Resin)

    EWS
    $ 2,535.00 - $ 2,535.00
    $ 2,535.00
    $ 2,535.00 - $ 2,535.00
    $ 2,535.00

    EWS RT1035-V2 – Whole Home Water Softener System The EWS RT1035-V2 is a compact whole-home water softener designed to protect plumbing, appliances,...

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    $ 2,535.00 - $ 2,535.00
    $ 2,535.00
    $ 2,535.00 - $ 2,535.00
    $ 2,535.00

Pro tips: Install whole-home systems after the meter/PRV and before branches; bypass hose bibbs if you want untreated outdoor taps. Always flush new cartridges, keep spare O-rings on hand, and set a reminder for filter changes. Not sure where to start? Tell us city/well, pipe size, and what you want to improve—taste, odor, chlorine/chloramine, or scale—and we’ll dial it in.

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