Environmental Water Systems RO4 Product Sheet

ESSENTIAL 4-STAGE
Reverse Osmosis

Four-stage reverse osmosis for water
with greater sediment or particulates.

• World-class EWS quality and performance.

• High performance membrane – up to 50 gallons per day.

• Highest quality carbon pre- and post-filtration available.

• Use with salt softener to remove salt from drinking water.

• Meets or exceeds all compliances.

• Removes and reduces chloramine, chlorine,
THMs, VOCs, pesticides, lead, cysts, minerals, total
dissolved solids, bacteria and viruses

Chlorine (a common disinfectant used in USA tap water)
and its byproducts are known carcinogens. Drinking them,
or inhaling and absorbing them while showering or bathing,
is not recommended.* The New York State Dept. of Health
and President’s Cancer Panel recommend water filtration
to reduce or eliminate our exposure to these substances.

1

, and more.

2

SAVE OVER $500
EVERY YEAR.

The ESSENTIAL replaces over
15,000 plastic water bottles,
saving you $500+ every year.

ENVIRONMENTALLY
FRIENDLY.

The ESSENTIAL is recyclable
and biodegradable, and
prevents plastic water bottle
waste in landfills and oceans,

*FILTER ALL THE WATER IN YOUR HOME WITH ONE SYSTEM. Every sink, shower, and bath in your home could

provide you with the convenience of clean, contaminant-free water. No hassle, no maintenance, no salts or chemicals,
and trusted by hospitals, health care centers, military, and private homes worldwide. For EWS Whole Home Filtration,
visit www.ewswater.com or call EWS Customer Service at 702-256-8182 (M-F 8 am - 4.30 pm Pacific Time).

ULTIMATE
PROTECTION.

The ESSENTIAL removes and
reduces chloramine, chlorine,
fluoride, total dissolved solids,
pharmaceutical residues, lead,
cysts, minerals, and more.

HASSLE-FREE
ENJOYMENT.

Enjoy the convenience of
quality filtered water right at
your sink, anytime you want it.

TECHNICAL INFORMATION

ESSENTIAL FOURSTAGE REVERSE OSMOSIS SYSTEMS

MODEL #: RO4 || MODEL #: RO4UV

SYSTEM SPECIFICATIONS

o

OPERATION TEMPERATURE: Maximum 100o F (38

C) / Minimum 40

SYSTEM FLOW RATE: <1.0 gallons per minute (GPM)

Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. Replace
your filters and UV lamp annually or as needed (do not exceed 1 year). Install in cold water supply only. Install in compliance with local and state
regulations. All installation instructions, service manuals, technical and product information is available online at www.EWSWATER.com

o

F (4o C) OPERATION PRESSURE: Maximum 75 psi / Minimum 40 psi

MODEL # REPLACEMENT FILTER SET #

RO4 F.SET.RO4 (INCLUDES: F-PRESED, F-GAC, F-MEM, F-GAC-B)

RO4-UV F.SET.RO4-UV (INCLUDES: F-PRESED, F-GAC, F-MEM, F-GAC-B, F-LAMP)

FILTER SPECIFICATIONS

STAGE 1 ITEM #: FPRESED | PRESEDIMENT 5 MICRON

Filters out rust, silt, and sediment. Enhances the performance of the following filters.
CONSTRUCTION: 100% pure polypropylene fibers. No fillers or binders. Meets FDA requirements for all food and beverage contact.
SERVICE LIFE: 1 year‡ MAX. FLOW: <1.0 GPM / 3.4 LPM MAX. PRESSURE: 75 PSIG / 5.17 Bar TEMP. RANGE: 40100

STAGE 2 ITEM #: FGAC | PREFILTER ADVANCED CARBON

Protects membrane, filters chlorine, chloramine, and VOCs for clear, clean water. Reduces and/or eliminates bad tastes and odors. Increased
surface area, almost no fines release, enhanced adsorption, excellent performance.
CONSTRUCTION: Advanced carbon.

SERVICE LIFE: 1 year‡ MAX. FLOW: <1.0 GPM / 3.4 LPM MAX. PRESSURE: 75 PSIG / 5.17 Bar TEMP. RANGE: 40100

STAGE 3 ITEM #: FMEM | ADVANCED RO MEMBRANE

Protection from inorganics, chloride, nitrates, nitrites, heavy metals, and more. Removes minerals and fluoride to suit your preferences. “Strips”
water for full protection and as a precaution against fluoride allergies.
CONSTRUCTION: Polyamide thin-film composite.
SERVICE LIFE: 1 year‡ PERMEATE FLOW: 50 GPD / 189 LPD MAX. PRESSURE: 75 PSIG / 5.17 Bar TEMP. RANGE: 40100o F / 4-38o C

SERVICE LIFE ON FILTERS/MEMBRANE:

UP TO 1 YEAR.* REPLACE FILTERS &

MEMBRANE ANNUALLY OR AS NEEDED.

DO NOT EXCEED 1 YEAR.

Fully Compliant with

California No-Lead Standards.

o

F / 4-38o C

o

F / 4-38o C

STAGE 4 ITEM #: FGACB | POSTFILTER CARBON BLOCK 1 MICRON

Advanced final stage filter for chlorine, chloramine (chlorine and ammonia compound), lead, cysts, VOCs, and more. Increased surface area,
enhanced adsorption, excellent performance in a carbon block form.
CONSTRUCTION: Activated carbon block.
SERVICE LIFE: 1 year‡ MAX. FLOW: <1.0 GPM / 3.4 LPM MAX. PRESSURE: 75 PSIG / 5.17 Bar TEMP. RANGE: 40100

ITEM #: FLAMP | ULTRAVIOLET UV DISINFECTION** OPTIONAL.** INCLUDED WITH MODEL #: RO3UV

Kills bacteria, viruses, and other microorganisms. Independently tested to reduce E. coli by 99.99992% and
micrococcus luteus by 99.93%.
CONSTRUCTION: UV lamp encased in glass and 316 bonded stainless steel interior housing.
SERVICE LIFE: 1 year‡ MAX. FLOW: <1.0 GPM / 3.4 LPM
MAX. PRESSURE: 75 PSIG / 5.17 Bar TEMP. RANGE: 40100

SYSTEM SIZE:

5” deep x 16” tall x 16” wide (allow 4” clearance at the bottom of the unit for filter replacement maintenance)

o

F / 4-38

o

C

Independently lab-tested to

meet or exceed NSF/ANSI

reduction of chlorine, taste,

o

F / 4-38o C

Standard 42, 53 & 58 for

odor, lead, and cysts.

WATER STORAGE TANK SIZE: 11” X 11” X 16” (3.2 gallon capacity – other sizes available)

SHIPPING CARTON SIZE: 12” x 12” x 30” SHIPPING CARTON WEIGHT: 20 lbs.

Our ESSENTIAL Drinking

The ESSENTIAL comes fully assembled and complete with everything
you need for a proper installation: chrome faucet dispenser (finish options

available), air gap, drain adaptor, angle stop valve connection, all tubing (5 ft.
each), mounting bracket, water storage tank, and all filters.

Made in the USA Meets or Exceeds ALL Compliances.

1

UV upgraded systems only.

2

These substances may or may not be in your water. Please ensure this is the correct system

1Kills 99.9% of Bacteria. UV upgraded systems only.

for your needs. Please see included instructions for proper installation and usage.
‡Filter service life is based on local water conditions and usage.
**UV is included with model# RO4-UV. A UV upgrade can be added at any time to any RO.

2These substances may or may not be in your water. Please ensure this is the correct system for your needs.
Please see included instructions for proper installation and usage.

CALL EWS CUSTOMER SERVICE: 7022568182 MONDAYFRIDAY 8 AM4.30 PM PACIFIC TIME

Water Systems (pictured

at right) are available to

suit the most common
water conditions and
personal preferences
without the drawbacks of
RO sysrems. Contact EWS
Customer Service for more
information.

FAX: [phone] EMAIL: [e-mail]

WWW.EWSWATER.COM