12 GPM | UV Monitor | D4+ Trojan UV Max VIQUA UV Water System

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Viqua UV Max Home Ultraviolet Sterilizers
VIQUA UV Max D4+ UV Water Sterilizer with LCD Controller

Adds state of the art UV sensor technology to the D4 UV system and includes VIQUA’s newest innovation, the interactive LCD controller

VIQUA HOME D4 Series Ultraviolet Disinfection Systems are specifically designed for point-of-entry water treatment in homes or light commercial applications where microbiological control is required. VIQUA UV MAX D4 compact UV disinfection systems provide a reliable, economical, and chemical-free way to safeguard drinking water in any residential application.

Viqua UV Max D4+ point of entry systems whole house ultraviolet systems are intended to be plumbed in where your water enters your home.

Product Specifications for VIQUA Point of Use Home Ultraviolet UV System Installation Instructions for VIQUA Point of Use Home UV System

Features of UV Max D4+:

  • Continuous feedback of UV disinfection performance for added peace of mind at recommended flow rates up to 12 gpm (45 lpm)
  • New Viqua LCD Controller, featuring a large backlit display for easy reading, simultaneously displaying lamp life remaining, UV Intensity Status (D4+ only), support contact information, lamp replacement reminders, and more.   Click here for more LCD controller features and details.
  • Equipped to inactivate chlorine resistant parasites such as Cryptosporidium and Giardia, harmful bacteria like E.Coli, and viruses not visible to the naked eye.
  • The special lamp plug ensures that no one can power the UV lamp if it’s not in the UV chamber, and a new and improved sensor on the D4+ ensures safe UV levels are maintained.
  • Lamps and sleeves are assembled together for ease of handling. They can be replaced separately, in minutes and without tools.
  • Our high output UV lamp is engineered to maximize UV output.  Overall foot print is extremely compact due to advanced lamp/chamber technology.
  • Easy to maintain and built to deliver outstanding UV performance.

Benefits of UV disinfection

  • 99.99% destruction of bacteria, virus & protozoan cysts (Giardia Lamblia & Cryptosporidium) at rated flow.
  • Chemical-free 
  • Easy to install and service
  • Economical and energy efficient

UV Max D4 Plus Specifications

UV Max Model:  D4+
Viqua Part Number: 650695-R
Recommended Flow Rate:* 12 GPM (45 lpm)
Plug: N. America (NEMA P-15)
Voltage: 100-240v/50-60Hz
Power Consumption: 50W
Connection: 3/4" MNPT
Chamber Dimensions: 4" Dia  x 20 1/2" L
Lamp Life: 9,000 Hours
Max. Operating Pressure: 125 psi (8.62 bar)
Ambient Water Temperature: 36-104ºF  (2-40°C)
Chamber Material: 304SS

*Factory recommended flow rate is calculated at a UV dose of 30 mj/cm².  See manufacturer's specification sheet for flow rates at different doses.

UV Max D4 Plus Controller 

Controller: LCD
Visual "Power On": YES
Visual Lamp Life Remaining: YES
Audible Lamp Failure: YES
Audible Lamp Replacement Reminder: YES
UV Sensor: YES

Click Here for additional features and specifications.

What Size of UV System do I need?

What Size of UV      
System Do I Need?    

Choose a UV System with a recommended flow that meets or exceeds your peak flow rate. When in doubt, always choose the next size up.

Don't know your flow rate?  

Visit our  Flow Rate & Sizing Guide for help.


Replacement Parts for UV Max D4+

602805 UV Lamp for D4, D4 Premium, & D4+
UV Quartze Sleeve for
D4, D4 Premium, & D4+
650733R-001 Controller for D4 Premium & D4+

Viqua Whole House UV System Installation Diagram

Typical Installation of VIQUA UV Max D4+ Whole-House UV Water Treatment System.  (Click to Enlarge.)


Viqua UV Max LCD Controller for Ultraviolet Water Disinfection Systems

Viqua UV Max LCD Controller for Ultraviolet System Viqua UV Max's LCD controller features a large backlit display for easy reading, simultaneously displaying lamp life remaining, UV Intensity Status (Plus series only), support contact information, and lamp replacement reminder that indicates when the lamp needs to be replaced, ensuring continued water safety. The intuitive, user-friendly menu allows you to quickly find the replacement parts needed for the system by using the replacement parts menu, as well as quick reference instructions on board for system troubleshooting.

  • Intuitive, user-friendly menu
  • Multi-language support: English, French, Spanish
  • Soft-touch keys
  • Quick-reference instructions on board for system troubleshooting
  • Easily find the replacement parts by using our onboard replacement parts menu.
  • Indicator lights show the status of system components and warning lights appear when system maintenance is required. 

For more information, please visit this products webpage.