Spec Sheet
For Residential Applications
ES-WQ-PWRO4ZRO
Job Name
–––––––––––––––––––––––––––––––––––––––––––
Contractor
––––––––––––––––––––––––––––––––––––––––––––
Job Location
–––––––––––––––––––––––––––––––––––––––––
Approval
–––––––––––––––––––––––––––––––––––––––––––––
Engineer
–––––––––––––––––––––––––––––––––––––––––––––
Contractor’s P.O. No.
––––––––––––––––––––––––––––––––––
Approval
–––––––––––––––––––––––––––––––––––––––––––––
Representative
––––––––––––––––––––––––––––––––––––––––
PWRO4ZRO
The all new patented ZeroWaste
®
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 resi-
dential applications.
Features
• 4-Stage Filtration System
Stage 1: Sediment Filter removes particulates down
to 1 micron
Stage 2: Carbon Block Filter removes chlorine taste
and odors
Stage 3: Advanced TFC Membrane rejects impurities
down to 1/10,000th of a micron
Stage 4: Activated Carbon Final Filter serves as a final
polish to remove any trace residuals.
• 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
ZeroWaste
®
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.
Model PWRO4ZRO
ZeroWaste
®
Reverse Osmosis System
ZRO-4 ZeroWaste
®
RO System
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.
LEAD FREE
*
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
System tested and certified by WQA against
NSF/ANSI Standard 58 for the reduction of the
claims specified on the performance data sheet
and NSF/ANSI Standard 372 for lead free.
NOTICE
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 with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.