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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.

  • 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 House Water Softener System, 1.0 cu. ft. Resin Brand: EWS | SKU: RT1035-V2 Product Overview The EWS RT1035-V2 is a whole ho...

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    $ 2,535.00 - $ 2,535.00
    $ 2,535.00
    $ 2,535.00 - $ 2,535.00
    $ 2,535.00
  • EWS V2 whole house filtration system media detail
    EWS V2 whole house water filtration system front view

    EWS-SPECTRUM-V2 Whole House Filtration and Salt-Free Conditioning System

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

    EWS-SPECTRUM-V2 Whole House Filtration and Conditioning System Brand: EWS | SKU: EWS-SPECTRUM-V2 Product Overview The EWS-SPECTRUM-V2 is a whol...

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    $ 4,346.25 - $ 4,346.25
    $ 4,346.25
    $ 4,346.25 - $ 4,346.25
    $ 4,346.25
  • 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 and Salt-Free Conditioning System

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

    EWS-1035-V2 Whole House Filtration and Conditioning System Brand: EWS | SKU: EWS-1035-V2 Product Overview The EWS-1035-V2 is a whole-house wate...

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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-1465-V2 Chloramine Treatment Whole House Filtration and Conditioning System

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

    EWS-1465-V2 Whole House Filtration and Conditioning System Brand: EWS | SKU: EWS-1465-V2 Product Overview The EWS-1465-V2 is a whole-house filt...

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    $ 5,471.25 - $ 5,471.25
    $ 5,471.25
    $ 5,471.25 - $ 5,471.25
    $ 5,471.25
  • 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 Whole House Water Filtration System

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

    EWS CWL-SPECTRUM-V2 Whole House Water Filtration System Brand: EWS | SKU: CWL-SPECTRUM-V2 Product Overview The EWS CWL-SPECTRUM-V2 is a whole h...

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    $ 3,517.50 - $ 3,517.50
    $ 3,517.50
    $ 3,517.50 - $ 3,517.50
    $ 3,517.50
  • 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 for Smaller Homes

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

    EWS CWL-1035-V2 Whole House Water Filtration System for Smaller Homes Brand: EWS | SKU: CWL-1035-V2 Product Overview The EWS CWL-1035-V2 is a w...

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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-1665-V2-1.5 Whole House Water Filtration System for Large Homes

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

    EWS CWL-1665-V2-1.5 Whole House Water Filtration System for Large Homes Brand: EWS | SKU: CWL-1665-V2-1.5 Product Overview The EWS CWL-1665-V2-...

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    $ 7,867.50 - $ 7,867.50
    $ 7,867.50
    $ 7,867.50 - $ 7,867.50
    $ 7,867.50
  • 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 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 Chloramine Treatment Whole House Water Filtration System Brand: EWS | SKU: CWL-1465-V2 Product Overview The EWS CWL-1465-V2 is ...

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    $ 4,717.50 - $ 4,717.50
    $ 4,717.50
    $ 4,717.50 - $ 4,717.50
    $ 4,717.50
  • 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 T-M/GAC-SPECTRUM-V2 CWL Spectrum V2 Replacement Carbon Tank

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

    EWS T-M/GAC-SPECTRUM-V2 CWL Spectrum V2 Replacement Carbon Tank Brand: EWS | SKU: T-M/GAC-SPECTRUM-V2 Product Overview The EWS T-M/GAC-SPECTRUM...

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    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
    $ 2,591.25 - $ 2,591.25
    $ 2,591.25
  • 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

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

    EWS F.SET.DWS-UV Replacement Filter Set with UV Lamp Brand: EWS | SKU: F.SET.DWS-UV Product Overview The EWS F.SET.DWS-UV is the replacement fi...

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    $ 351.75 - $ 351.75
    $ 351.75
    $ 351.75 - $ 351.75
    $ 351.75
  • EWS ICN/GAC1035 systems media replacement kit without tank

    EWS Media Replacement Kits Less Tank for EWS Systems

    EWS
    $ 2,015.25 - $ 4,940.25
    $ 2,015.25 - $ 4,940.25
    $ 2,015.25 - $ 4,940.25
    $ 2,015.25

    EWS Media Replacement Kits Less Tank for EWS Systems Brand: EWS | SKUs: ICN/GAC1035, ICN/GAC1054, ICN/GAC1354, ICN/GAC1665, ICN/GAC-SPECTRUM Pr...

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    $ 2,015.25 - $ 4,940.25
    $ 2,015.25 - $ 4,940.25
    $ 2,015.25 - $ 4,940.25
    $ 2,015.25
  • 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

    EWS CWL Systems Media Replacement Kits Brand: EWS | SKUs: M/GAC1035, M/GAC1054, M/GAC1354, M/GAC1665, M/GAC-SPECTRUM Product Overview EWS CWL S...

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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
  • A pile of black granular activated carbon media for water filtration systems.
    EWS whole house media replacement kit with tank, carbon media, and service components

    EWS Replacement Tank Kits with Media for EWS Series Systems

    EWS
    $ 2,240.25 - $ 3,740.25
    $ 2,240.25 - $ 3,740.25
    $ 2,240.25 - $ 3,740.25
    $ 2,240.25

    EWS Replacement Tank Kits with Media for EWS Series Systems Brand: EWS | Series: EWS Replacement Tank Kits Product Overview EWS replacement tan...

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    $ 2,240.25 - $ 3,740.25
    $ 2,240.25 - $ 3,740.25
    $ 2,240.25 - $ 3,740.25
    $ 2,240.25
  • EWS T-M/GAC-SPECTRUM replacement carbon tank for CWL Spectrum whole house systems

    EWS T-M/GAC-SPECTRUM CWL Spectrum Replacement Carbon Tank

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

    EWS T-M/GAC-SPECTRUM CWL Spectrum Replacement Carbon Tank Brand: EWS | SKU: T-M/GAC-SPECTRUM Product Overview The EWS T-M/GAC-SPECTRUM is a rep...

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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 T-M/GAC1354 CWL-1354 Replacement Carbon Tank

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

    EWS T-M/GAC1354 CWL-1354 Replacement Carbon Tank Brand: EWS | SKU: T-M/GAC1354 Product Overview The EWS T-M/GAC1354 is a replacement carbon tan...

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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/GAC1054 replacement carbon tank for CWL-1054 whole house system
    EWS CWL replacement carbon filtration tank for whole house systems

    EWS T-M/GAC1054 CWL-1054 Replacement Carbon Tank

    EWS
    $ 1,691.25 - $ 1,691.25
    $ 1,691.25
    $ 1,691.25 - $ 1,691.25
    $ 1,691.25

    EWS T-M/GAC1054 CWL-1054 Replacement Carbon Tank Brand: EWS | SKU: T-M/GAC1054 Product Overview The EWS T-M/GAC1054 is a replacement carbon tan...

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    $ 1,691.25 - $ 1,691.25
    $ 1,691.25
    $ 1,691.25 - $ 1,691.25
    $ 1,691.25
  • EWS T-M/GAC1035 replacement carbon tank for CWL-1035 whole house system
    EWS CWL replacement carbon filtration tank for whole house systems

    EWS T-M/GAC1035 CWL-1035 Replacement Carbon Tank

    EWS
    $ 1,466.25 - $ 1,466.25
    $ 1,466.25
    $ 1,466.25 - $ 1,466.25
    $ 1,466.25

    EWS T-M/GAC1035 CWL-1035 Replacement Carbon Tank Brand: EWS | SKU: T-M/GAC1035 Product Overview The EWS T-M/GAC1035 is a replacement carbon tan...

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    $ 1,466.25 - $ 1,466.25
    $ 1,466.25
    $ 1,466.25 - $ 1,466.25
    $ 1,466.25
  • EWS SET.RU300C18 replacement filter set for RU300C18 system

    EWS SET.RU300C18 Replacement Filter Set for RU300C18

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

    EWS SET.RU300C18 Replacement Filter Set for RU300C18 Brand: EWS | SKU: SET.RU300C18 Product Overview The EWS SET.RU300C18 is a replacement filt...

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    $ 269.25 - $ 269.25
    $ 269.25
    $ 269.25 - $ 269.25
    $ 269.25
  • EWS BB-PRESED-50-SW replacement pre-filter cartridge detail
    EWS BB-PRESED-50-SW replacement pre-filter for two-stage sediment system

    EWS BB-PRESED-50-SW 20 in. Sediment Pre-Filter Cartridge, 50 Micron

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

    EWS BB-PRESED-50-SW 20 in. Sediment Pre-Filter Cartridge, 50 Micron Brand: EWS | SKU: BB-PRESED-50-SW Product Overview The EWS BB-PRESED-50-SW ...

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    $ 126.75 - $ 126.75
    $ 126.75
    $ 126.75 - $ 126.75
    $ 126.75
  • EWS BB-GACB-10RFA replacement filter for two-stage sediment system

    EWS BB-GACB-10RFA 20 in. Radial Flow Carbon Block Replacement Filter

    EWS
    $ 373.50 - $ 373.50
    $ 373.50
    $ 373.50 - $ 373.50
    $ 373.50

    EWS BB-GACB-10RFA 20 in. Radial Flow Carbon Block Replacement Filter Brand: EWS | SKU: BB-GACB-10RFA Product Overview The EWS BB-GACB-10RFA is ...

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    $ 373.50 - $ 373.50
    $ 373.50
    $ 373.50 - $ 373.50
    $ 373.50
  • EWS BB-FUGAC200A-1 whole house filtration system components and replacement filters
    EWS BB-FUGAC200A-1 two-stage point of entry whole house water filtration system

    EWS BB-FUGAC200A-1 Two-Stage Whole House Water Filtration System

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

    EWS BB-FUGAC200A-1 Two-Stage Whole House Water Filtration System Brand: EWS | SKU: BB-FUGAC200A-1 Product Overview The EWS BB-FUGAC200A-1 is a ...

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    $ 794.25 - $ 794.25
    $ 794.25
    $ 794.25 - $ 794.25
    $ 794.25
  • EWS BB-GUARD-FILTER-1.5 replacement cartridge for Heater Guard 1.5 inch system
    EWS BB-Guard replacement filter cartridge for Heater Guard systems

    EWS BB-GUARD-FILTER-1.5 Replacement Cartridge for Heater Guard 1.5 in.

    EWS
    $ 201.75 - $ 201.75
    $ 201.75
    $ 201.75 - $ 201.75
    $ 201.75

    EWS BB-GUARD-FILTER-1.5 Replacement Cartridge for Heater Guard 1.5 in. Brand: EWS | SKU: BB-Guard-Filter-1.5 Product Overview The EWS BB-GUARD-...

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    $ 201.75 - $ 201.75
    $ 201.75
    $ 201.75 - $ 201.75
    $ 201.75
  • EWS Heater Guard 3/4 inch sediment and scale protection system

    EWS Heater Guard 3/4 in. Sediment and Scale Protection System

    EWS
    $ 417.75 - $ 417.75
    $ 417.75
    $ 417.75 - $ 417.75
    $ 417.75

    EWS Heater Guard 3/4 in. Sediment and Scale Protection System Brand: EWS | SKU: EWS-HEATER-GUARD-3/4 Product Overview The EWS Heater Guard 3/4 ...

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    $ 417.75 - $ 417.75
    $ 417.75
    $ 417.75 - $ 417.75
    $ 417.75
  • EWS Heater Guard 1.5 inch sediment and scale protection system

    EWS Heater Guard 1.5 in. Sediment and Scale Protection System

    EWS
    $ 492.75 - $ 492.75
    $ 492.75
    $ 492.75 - $ 492.75
    $ 492.75

    EWS Heater Guard 1.5 in. Sediment and Scale Protection System Brand: EWS | SKU: EWS-HEATER-GUARD-1.5 Product Overview The EWS Heater Guard 1.5 ...

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    $ 492.75 - $ 492.75
    $ 492.75
    $ 492.75 - $ 492.75
    $ 492.75

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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