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EWS

EWS – Environmental Water Systems delivers whole-home filtration, salt-free conditioning, and advanced drinking-water systems made in the USA. Shop the flagship whole-home appliances, under-sink filtration, reverse osmosis with optional UV, and the filter sets to keep everything performing.

Shop by category

  • Whole-home filtration (CWL series): city or well* water carbon filtration for chlorine/chloramine, taste, and odor
  • Whole-home filtration + conditioning (EWS / SPECTRUM): adds ICN salt-free conditioning to help reduce scale on plumbing and water heaters
  • Under-sink drinking water: ESSENTIAL DWS (3-stage carbon), MAX FLOW high-capacity faucet filtration
  • Reverse osmosis: ESSENTIAL RO3/RO4 systems, with optional ultraviolet (UV) models for added microbial protection
  • Filter replacements & parts: annual under-sink cartridges, RO membranes, and system-specific kits

Quick choosing guide

  1. Whole-home vs point-of-use: choose CWL for whole-home filtration; step up to EWS/SPECTRUM if you want salt-free conditioning along with filtration.
  2. City vs well water: for municipal water, select chlorine/chloramine-rated models. For wells, review a recent lab test and match any specialty needs (iron, sulfur, bacteria) with the proper EWS solution.
  3. Drinking water choices: prefer mineral taste and no storage tank? pick DWS/MAX FLOW. Want the most removal and “flat/distilled” taste? pick RO3/RO4 and add UV where you want microbial protection.
  4. Size it right: match system size/valve to your plumbing (3/4", 1", 1-1/2") and household flow so pressure stays strong.
  5. Maintenance: under-sink filters are typically replaced annually; whole-home media has multi-year life per model. Always follow the EWS service guide.

*Well water: review a current lab analysis before selecting equipment. Some wells may require pre-treatment or specialty filtration.

  • White water filter with a brand logo on a white background

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

    EWS
    $ 2,520.00 - $ 2,520.00
    $ 2,520.00
    $ 2,520.00 - $ 2,520.00
    $ 2,520.00

    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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    $ 2,520.00 - $ 2,520.00
    $ 2,520.00
    $ 2,520.00 - $ 2,520.00
    $ 2,520.00
  • CWL-1465-V2- Media
    CWL-1465-V2- Front view

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

    EWS
    $ 4,143.75 - $ 4,143.75
    $ 4,143.75
    $ 4,143.75 - $ 4,143.75
    $ 4,143.75

    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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    $ 4,143.75 - $ 4,143.75
    $ 4,143.75
    $ 4,143.75 - $ 4,143.75
    $ 4,143.75
  • Two people standing next to a water filter on a white background
    Water treatment system on a white background

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

    EWS
    $ 3,149.25 - $ 3,149.25
    $ 3,149.25
    $ 3,149.25 - $ 3,149.25
    $ 3,149.25

    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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    $ 3,149.25 - $ 3,149.25
    $ 3,149.25
    $ 3,149.25 - $ 3,149.25
    $ 3,149.25
  • CWL-1465-V2- Media
    CWL-1465-V2- Front view

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

    EWS
    $ 5,196.75 - $ 5,196.75
    $ 5,196.75
    $ 5,196.75 - $ 5,196.75
    $ 5,196.75

    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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    $ 5,196.75 - $ 5,196.75
    $ 5,196.75
    $ 5,196.75 - $ 5,196.75
    $ 5,196.75
  • Man and woman standing next to a water filtration system on a white background
    CWL-1465-V2- Front view

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

    EWS
    $ 3,314.25 - $ 3,314.25
    $ 3,314.25
    $ 3,314.25 - $ 3,314.25
    $ 3,314.25

    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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    $ 3,314.25 - $ 3,314.25
    $ 3,314.25
    $ 3,314.25 - $ 3,314.25
    $ 3,314.25
  • Two people standing next to a water filter on a white background
    Water treatment system on a white background

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

    EWS
    $ 2,802.00 - $ 2,802.00
    $ 2,802.00
    $ 2,802.00 - $ 2,802.00
    $ 2,802.00

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

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    $ 2,802.00 - $ 2,802.00
    $ 2,802.00
    $ 2,802.00 - $ 2,802.00
    $ 2,802.00
  • Man and woman standing next to a water filtration system on a white background
    CWL-1465-V2- Front view

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

    EWS
    $ 7,873.50 - $ 7,873.50
    $ 7,873.50
    $ 7,873.50 - $ 7,873.50
    $ 7,873.50

    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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    $ 7,873.50 - $ 7,873.50
    $ 7,873.50
    $ 7,873.50 - $ 7,873.50
    $ 7,873.50
  • Man and woman standing next to a water filtration system on a white background
    CWL-1465-V2- Front view

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

    EWS
    $ 4,723.50 - $ 4,723.50
    $ 4,723.50
    $ 4,723.50 - $ 4,723.50
    $ 4,723.50

    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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    $ 4,723.50 - $ 4,723.50
    $ 4,723.50
    $ 4,723.50 - $ 4,723.50
    $ 4,723.50

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

    EWS
    $ 2,027.25 - $ 2,027.25
    $ 2,027.25
    $ 2,027.25 - $ 2,027.25
    $ 2,027.25

    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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    $ 2,027.25 - $ 2,027.25
    $ 2,027.25
    $ 2,027.25 - $ 2,027.25
    $ 2,027.25
  • Three 'Essential' brand water filters on a white background

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

    EWS
    $ 329.25 - $ 329.25
    $ 329.25
    $ 329.25 - $ 329.25
    $ 329.25

    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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    $ 329.25 - $ 329.25
    $ 329.25
    $ 329.25 - $ 329.25
    $ 329.25

  • EWS - Systems Media Replacement Kits less Tank

    EWS
    $ 1,428.75 - $ 5,326.50
    $ 1,428.75 - $ 5,326.50
    $ 1,428.75 - $ 5,326.50
    $ 1,428.75

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

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    $ 1,428.75 - $ 5,326.50
    $ 1,428.75 - $ 5,326.50
    $ 1,428.75 - $ 5,326.50
    $ 1,428.75

  • EWS - CWL Systems Media Replacement Kits

    EWS
    $ 874.50 - $ 4,185.00
    $ 874.50 - $ 4,185.00
    $ 874.50 - $ 4,185.00
    $ 874.50

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

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    $ 874.50 - $ 4,185.00
    $ 874.50 - $ 4,185.00
    $ 874.50 - $ 4,185.00
    $ 874.50
  • A pile of black granular activated carbon media for water filtration systems.
    Water filtration system with filter, cleaning brush, and media on a white background

    EWS - Systems Media Replacement Kits with Tanks for EWS Series

    EWS
    $ 1,550.25 - $ 3,178.50
    $ 1,550.25 - $ 3,178.50
    $ 1,550.25 - $ 3,178.50
    $ 1,550.25

    EWS Whole Home Water Filtration and Conditioning – Replacement Tank Kits for EWS Series Keep your EWS Whole Home Water Filtration & Conditionin...

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    $ 1,550.25 - $ 3,178.50
    $ 1,550.25 - $ 3,178.50
    $ 1,550.25 - $ 3,178.50
    $ 1,550.25

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

    EWS
    $ 2,027.25 - $ 2,027.25
    $ 2,027.25
    $ 2,027.25 - $ 2,027.25
    $ 2,027.25

    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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    $ 2,027.25 - $ 2,027.25
    $ 2,027.25
    $ 2,027.25 - $ 2,027.25
    $ 2,027.25

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

    EWS
    $ 2,106.75 - $ 2,106.75
    $ 2,106.75
    $ 2,106.75 - $ 2,106.75
    $ 2,106.75

    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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    $ 2,106.75 - $ 2,106.75
    $ 2,106.75
    $ 2,106.75 - $ 2,106.75
    $ 2,106.75

  • EWS - CWL Filtration Tanks – Replacement Carbon Tanks for Whole House Systems CWL-1054

    EWS
    $ 1,669.50 - $ 1,669.50
    $ 1,669.50
    $ 1,669.50 - $ 1,669.50
    $ 1,669.50

    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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    $ 1,669.50 - $ 1,669.50
    $ 1,669.50
    $ 1,669.50 - $ 1,669.50
    $ 1,669.50

  • EWS - CWL Filtration Tanks – Replacement Carbon Tanks for Whole House Systems CWL-1035

    EWS
    $ 1,073.25 - $ 1,073.25
    $ 1,073.25
    $ 1,073.25 - $ 1,073.25
    $ 1,073.25

    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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    $ 1,073.25 - $ 1,073.25
    $ 1,073.25
    $ 1,073.25 - $ 1,073.25
    $ 1,073.25

  • 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 - SET.FUGAC350 - Replacement Filter for FUGAC350

    EWS
    $ 206.25 - $ 206.25
    $ 206.25
    $ 206.25 - $ 206.25
    $ 206.25

    Replacement Filter set for FUGAC350.

    $ 206.25 - $ 206.25
    $ 206.25
    $ 206.25 - $ 206.25
    $ 206.25

  • EWS - SET.FUGAC250 - Replacement Filter for FUGAC250

    EWS
    $ 168.75 - $ 168.75
    $ 168.75
    $ 168.75 - $ 168.75
    $ 168.75

    Replacement Filter set for FUGAC250.

    $ 168.75 - $ 168.75
    $ 168.75
    $ 168.75 - $ 168.75
    $ 168.75

  • EWS - SET.FUGAC150 - Replacement Filter for FUGAC150

    EWS
    $ 149.25 - $ 149.25
    $ 149.25
    $ 149.25 - $ 149.25
    $ 149.25

    Replacement Filter set for FUGAC150.

    $ 149.25 - $ 149.25
    $ 149.25
    $ 149.25 - $ 149.25
    $ 149.25
  • EWS - Replacement Pre-Filter Filter for Two Stage Sediment System - - Mechanical - Big Frog Supply
    Cylindrical green filter cartridge on a white background

    EWS - BB-PRESED-50-SW - Replacement Pre-Filter Filter for Two Stage Sediment System

    EWS
    $ 126.75 - $ 126.75
    $ 126.75
    $ 126.75 - $ 126.75
    $ 126.75

    BB-PRESED-50-SW – Sediment Pre-Filter for Two Stage Sediment System (50 Micron) The BB-PRESED-50-SW is a heavy-duty 20" pre-sediment filter cartrid...

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    $ 126.75 - $ 126.75
    $ 126.75
    $ 126.75 - $ 126.75
    $ 126.75
  • White cylindrical filter on a white background

    EWS - BB-GACB-10RFA - Replacement Filter for Two Stage Sediment System

    EWS
    $ 246.75 - $ 246.75
    $ 246.75
    $ 246.75 - $ 246.75
    $ 246.75

    BB-GACB-10RFA – Radial Flow Carbon Block Replacement Water Filter Cartridge The BB-GACB-10RFA is a premium 20" carbon block cartridge engineered to...

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    $ 246.75 - $ 246.75
    $ 246.75
    $ 246.75 - $ 246.75
    $ 246.75
  • Collection of BB-FUGAC200A-1 filters and components on a white background
    Blue water filter system with two cylindrical filters on a white background

    EWS BB-FUGAC200A-1 – Two-Stage Point of Entry Whole House Water Filtration

    EWS
    $ 794.25 - $ 794.25
    $ 794.25
    $ 794.25 - $ 794.25
    $ 794.25

    EWS BB-FUGAC200A-1 – Two-Stage Point of Entry Whole Home Water Filtration The EWS BB-FUGAC200A-1 is a point-of-entry cartridge system designed for ...

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    $ 794.25 - $ 794.25
    $ 794.25
    $ 794.25 - $ 794.25
    $ 794.25

Pro tips: For whole-home installs, place the system after the meter/pressure reducer and before branches; bypass hose bibbs if you prefer. Verify chloramine vs chlorine on city reports, size by plumbing diameter/flow, and schedule annual under-sink cartridge changes. Considering RO? Plan space for the tank (RO3/RO4) and add UV if desired. Questions? Send your water report (or city name), pipe size, and household size—we’ll dial in the right EWS system and filters.

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EWS MAX FLOW: The Ultimate Bottled Water Alternative

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The Top 8 Benefits of an EWS Whole Home Water Filtration System

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Ensuring the Quality of Your Home's Water Supply: EWS Whole Home

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How to change the BB-Guard-Filter-3/4 filter in your EWS Heater Guard.

The process of changing the BB-Guard-Filter-3/4 filter in your EWS Heater Guard is simple and straightforward.

How Often Should I Change My EWS Heater Guard Filter BB-Guard-Filter-3/4?

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