D4 Premium Whole House with LCD Screen


Whole Home D4 Premium w/ LCD Screen

Part Number: 660089-R/ 660090-R
Flow Rate: 12 gpm

SKU: 660089-R (D4 Premium) Category: Tag:


Product Details

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

Features & Specs

Flow Rates
16mJ/cm2 23 GPM (87 lpm) (5.2 m3/hr)
30mJ/cm2 12 GPM (45 lpm) (2.7 m3/hr)
40mJ/cm2 9 GPM (34 lpm) (2 m3/hr)
Dimensions 20 1/2″ x 4″ (52 cm x 10 cm)
Shipping Weight lbs (kg) 10 lbs (4.5 kg)
Connection Size 3/4″ MNPT
Power Consumption 50W



English Product Manual French Product Manual Spec Sheet


VIQUA Replacement Parts

Lamp Lamp/Quartz Sleeve Combo Quartz Sleeve Controller


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