
For Residential Applications
ES-WQ-PWDWUV3
Job Name 
Job Location 
Engineer 
Approval 
LEAD FREE
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*
Model PWDWUV3
Ultraviolet 3-Stage Systems
The PWDWUV3 from Watts produces high-quality, fresh water 
on demand, utilizing the power of ultraviolet light. Ultraviolet 
light has been used for years by the bottled water industry as 
a means to destroy various organisms in water. Now you can 
have the power of ultraviolet light under your kitchen sink, in 
your RV or on your boat. 
Features
• Three stages of filtration
• 5-Micron Sediment Filter: 
Reduces dirt, sand, and rust
• 1-Micron Carbon Block: 
Reduces Lead, Cysts (Cysts include: Cryptosporidium, 
Toxoplasma, Giardia, and Entamoeba)
• Ultraviolet light
• Adapt-A-Valve™
• Easy-to-Install
Benefits
• Reduces lead, chlorine, bad tastes, and odors
• Ideal for RV’s and boats
• Includes dedicated faucet or can be connected to cold 
water line
System Specifications
Operating Temperatures:  Minimum 40°F (4.4°C), 
Operating Pressure:  Minimum 20psi (1.40 kg/cm2), 
Ph Parameters: Minimum 5, Maximum 10
Flow Rate: 0.5 gpm @ 60 psig
Unit Dimensions: Approx. 14" W x 16" H x 5.5" D
Maximum 100°F (37.8°C)
Maximum 100psi (7.03 kg/cm2)
  Contractor 
  Approval 
  Contractor’s P.O. No. 
  Representative 
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PURE WATER
PWDWUV3
Replacement Filter Packs
MODEL FREQUENCY DESCRIPTION
PWMB10M5 6 Months 5-micron sediment filter 
PWCB10LED 6 Months 1-micron carbon block filter 
PWFPKUV3 Annual Includes all filters and 
UV Replacement Lamp
Note: Water conditions may require more frequent cartridge replacement
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.
USA:  Tel. (800) 224-1299 • www.watts.com  
Canada: Tel. (888) 208-8927 • www.watts.ca
ES-WQ-PWDWUV3  1248    © 2012 Watts
A Watts Water Technologies Company