The quality of drinking water can change with time and become contaminated with harmful bacteria. The Sterilight Cobalt™ system is a reliable, economical and chemical-free way to safeguard drinking water in any residential application. The Sterilight Cobalt™ system has been designed and tested to ensure quality drinking water is at everyone’s finger tips.

Features of the Sterilight Cobalt UV purification system
  • Equipped to inactivate chlorine-resistant parasites such as Cryptosporidium and Giardia, harmful bacteria like E.Coli and viruses not visible to the naked eye.
  • Specially designed and tested Sterilume™-HO lamps provide consistent and reliable ultraviolet output over the entire life of the lamp (9000 hours) to ensure continuous purification.
  • The system is easy to maintain and service.
  • Built with a durable stainless steel chamber to prolong life and eliminate ultraviolet light degradation.
  • The Cobalt™ ICE power supply visually displays the remaining lamp life and will go into alarm if the lamp fails to notify the homeowner.
  • The power supply has a sealed case to prevent damage from accidental water intrusion and is fully CSA and CE compliant.


View Specs


Temperature Management Valve - 440179

Integral temperature management valve for use on systems incorporating Sterilume high-output UV lamps. This fully automatic valve is installed on the outlet port of the disinfection system and will discharge a small amount of water to drain when the system reaches a preset temperature. T ...

Replacement Parts

Quartz Sleeve QS-740

87.2 cm (34.3"), domed

Power Supply BA-ICA-C

detachable IEC power cord sold separately

O-Ring - 410867

Retaining Nut - RN- 001

Retaining nut

Lamp / Sleeve Combo Kits SH0740-QL

comes with 1 o-ring

Sterilume HO UV Lamps - S740RL-HO

High-output UV replacement lamp [84 cm (33")]

Product Flow Rates

16 mJ/cm² 95% UVT @ eoll 50 gpm
30 mJ/cm² 95% UVT @ eoll 40 gpm
40 mJ/cm² 95% UVT @ eoll 30 gpm

Product Specificiations

Length 39.4 inches
Diameter 3.5 inches
Power Supply 24.1 x 8.1 x 6.4 cm
(9.4" x 3.2" x 2.5")
Inlet/Outlet Port Size 1.5" MNPT
Shipping Weight 10.9 kg
Reactor Chamber Material 304 S.S.
Lamp Type Sterilume HO
Max. current 0.8 Amp
Power Consumption 82 W
Lamp Power 70 W
Voltage 100-240V / 50-60Hz
Operating Parameters
Maximum hardness 120 ppm
(7 grains per gallon)
Maximum iron 0.3 ppm
Ambient Temperature 0-40 °C
(32-104 °F)
Maximum Operating Pressure 125 PSI
(8.62 bar)
Minimum UVT 75 %
Installation Orientation Horizontal or Vertical
UV Intensity Monitor No
Visual "Power On" Yes
Audible Lamp Failure Yes
Audible alarm mute button Yes
Visual Lamp Life Remaining Yes
Lamp Replacement Indicator Yes
Safety Interlock Yes
Flow Restrictor Optional
CoolTouch fan Optional
Flow Pacing No
Solenoid Valve No
4-20 Interface No
Dry Contact No
CE Yes