VIQUA D4 Premium (660089-R) - 12 GPM


The D4 Premium Model is a 12 GPM point-of-entry system for homes that renders chlorine-resistant parasites, bacteria and viruses harmless. This compact system features state of the art UV sensor technology, 2X the UV-C output of standard low-pressure lamp technology, a lamp age indicator, an LED monitor, stainless steel chamber, and 120 AC voltage. The D4 premium system features a state-of-the-art, touch-screen controller that displays lamp life remaining, support contact information and reminds you when to replace the lamp. D4 UV systems are reliable and time-tested for small home (1-2 bathrooms) and light commercial applications.



  • Lamp (602805) - Replace every 12 months
  • Quartz Sleeve (602732) - Replace every 24 months or as needed
  • Sleeve/Lamp Combo Kit (602810-102)

PDF iconVIQUA D4 Premium Owner's Manual

PDF iconVIQUA D4 Premium Spec Sheet

PDF iconLamp and Sleeve Replacement Instructions