The D4 Premium is VIQUA's latest innovation, combining the reliable D4 system with the new LCD Interactive Controller, for flow rates up to 12 gpm (45 lpm).

  • Space Efficient: High UV output lamp technology allows for a smaller eco-footprint, while providing the same UV performance as a longer chamber
  • Reliable: The constant current feature ensures stable UV lamp output, regardless of power fluctuations
  • High-performance UV lamp, rigorously tested to provide consistent output over the entire lamp life (9000 hours)
  • Application: Perfect for a wide range of whole-home, point-of-entry water treatment solutions in homes, cottages, or OEM applications
  • Optional accessories: Solenoid valve which will stop the flow of water through the chamber should the UV performance fall below a safe level
  • New interactive LCD display:
    • Simultaneously displays UV Intensity Status, lamp life remaining, support contact information
    • Dealer-programmable support screen: load company logo and complete contact information
    • Quick-reference instructions on board for system troubleshooting
    • Pre-programmed replacement part menu