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Viqua VIQUA D4 Model 12 GPM UV System - 650694-R 650694-R-
Viqua VIQUA D4 Model 12 GPM UV System - 650694-R 650694-R-
Viqua VIQUA D4 Model 12 GPM UV System - 650694-R 650694-R-

Viqua 650694-R D4 UV System 12 GPM 3/4" MNPT

$774.00 $840.00
(You save $66.00)


The VIQUA D4 Ultraviolet disinfection system provides a reliable, economical, and chemical-free way to safeguard water for every faucet in your home.

As a point-of-entry (POE) water treatment solution designed for small to mid-sized homes (and some light commercial applications), the VIQUA D4 UV water disinfection system protects from chlorine-resistant parasites such as Cryptosporidium and Giardia, harmful bacteria like E.Coli, and various microbiological contaminants. 

Made in North America, the compact D4 is VIQUA’s top-selling home ultraviolet system and allows for reliable disinfection at flow rates up to 12 gpm.


eol.pngEND-OF-LIFE TIMER: Counts down the days until annual lamp replacement

led.pngLED STATUS MONITOR: Displays system components’ status and functionality


SPACE EFFICIENT: High UV output lamp technology allows for a small eco-footprint, but long chamber 

RELIABLE: Constant current feature ensures stable UV lamp output, regardless of power fluctuations 

HIGH PERFORMANCE: UV lamp, tested for consistent output over lamp life (9000 hours) 

ENERGY EFFICIENT: Only uses as much power as a 40-watt light bulb

✓ ECONOMICAL Extremely cost-effective method for safe water in home

✓ EASY TO USE: Touch-screen display makes operation simple

✓ LOW MAINTENANCE: Annual UV lamp replacement is typically all that is required

✓ STRONG WARRANTY: No risk 10-yr warranty on UV chamber, 3-yrs on hardware and electrical, 1-yr warranty on lamps, sensor and sleeve


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


  • Flow Rate: 12 Gallons Per Minute
  • Application: Point-of-Entry
  • Capable of 100-240V, 50-60Hz 50W N. American Plug
  • Overall Dimensions: 20.5" x 4"
  • Inlet Dimensions: 3/4" MPT
  • Outlet Dimensions: 3/4" MPT
  • Electrical Plug Types Available:
    • B – North & Central America, Japan (NEMA 5-15P)
    • F – Europe, Brazil, Russia (CEE 7/7)


  • Chamber: 10 Years
  • Electric: 3 Years
  • Lamp & Sleeve: 1 Year


PDF iconVIQUA D4 Owner's Manual

PDF iconVIQUA D4 Spec Sheet

PDF iconLamp and Sleeve Replacement Instructions

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