For Residential Applications
ES-WQ-PWRO4ZRO
Job Name
Job Location
Engineer
Approval
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LEAD FREE
*
Contractor
Approval
Contractor’s P.O. No.
Representative
Model PWRO4ZRO
Zero Waste Reverse Osmosis System
ZRO-4 Zero Waste RO System
The all new patented Zero Waste Point-of-Use Reverse
Osmosis System is the first ever that wastes no water.
Comparable systems typically waste up to 4 -12 gallons for
every gallon of RO water produced. This Watts highly efficient
RO system provides better-than-bottled water quality for residential applications.
Features
• 4-Stage Filtration System
Stage 1: Sediment Filter removes particulates down
Stage 2: Carbon Block Filter removes chlorine taste
Stage 3: Advanced TFC Membrane rejects impurities
Stage 4: Activated Carbon Final Filter serves as a final
• Re-use of rinsewater (no waste)
• 50 gallons per day TFC membrane
• Upgraded Watts top mount faucet
• 3-Gallon Storage Tank
Versatility
• No faucet air gap or drain connection required.
• Space saving design, installs under sink or in limited space.
• Adapt-A-Valve™ easily connects to water source.
• Ideal for low pressure or well applications.
Reliability
• Advanced design uses patented technology and high-quality
components to ensure years of continuous operations with
trouble-free performance.
• As with all of the products in the Watts family, the Zero
Waste RO is backed by Watts reputation of excellence
• Economical and enviromentally friendly
• 100% Efficient - No wasted water
• Saves as much as 7,000 gallons per year in a typical residen-
tial application.
• Delivers high-quality drinking water for pennies a day.
to 1 micron
and odors
down to 1/10,000th of a micron
polish to remove any trace residuals.
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PURE WATER
PWRO4ZRO
System tested and certied by NSF International
against NSF/ANSI Standard 58 for the reduction
of the claims specified on the performance data
sheet.
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system. Systems certified for cyst reduction may be used
on disinfected waters that may contain filterable cysts.
System tested and certified by
WQA against NSF/ANSI Standard
372 for “lead free” compliance
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
System Specifications
Temperature: Minimum 40°F (4.4C),
Pressure: Minimum 40psi (2.8kg/cm2),
pH: Minimum 2, Maximum 11
Iron (Fe): Max 1.0 ppm
TDS (Total Dissolved Solids): <1800ppm
Turbidity: <5 NTU
Unit Dimensions: Approx. 20" W x 18" H x 6" D
Maximum 100°F (37.8C)
Maximum 85psi (6.0 kkg/cm2)
Replacement Filter Packs
Model Frequency description
PWFPKSEDCB 6 Months Includes sediment and carbon filter only
PWFPK4RO4 Includes all filters and membrane
PWMEM50 2 - 5 years 50 gallon per day membrane
PWILGAC10 Annually 10" final in-line filter
Note: Water conditions may require more frequent cartridge replacement
A Watts Water Technologies Company
ES-WQ-PWRO4ZRO 1248 © 2012 Watts
USA: Tel. (800) 224-1299 • www.watts.com
Canada: Tel. (888) 208-8927 • www.watts.ca