The Viqua SV5Q-PA Silver Series NSF Class B UV System is a reliable, economical and chemical-free way to safeguard drinking water in any residential application. This whole-house system is easy to maintain plus has a CSA and CE compliant power supply that is protected from damage and water intrusion. The Viqua SV5Q-PA Silver system has been designed and tested to ensure quality drinking water is at everyone's fingertips. 

Features:

• Class B Certified by NSF
• 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™-EX 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
• The ultraviolet lamp can be changed without interrupting the water flow
• Built with a durable stainless steel chamber to prolong life and eliminate ultraviolet light degradation
• The controller visually displays the remaining lamp life and will go into alarm if the lamp fails. The D4-V+ systems are equipped with a UV sensor which provides a continuous readout of UV intensity
  

NSF/ANSI Standard 55: Ultraviolet Microbiological Water Treatment Systems This standard establishes requirements for point-of-use (POU) and point-of-entry (POE) non-public water supply (non-PWS) ultraviolet systems and includes two optional classifications.
Class A systems (40mJ/cm²) are designed to disinfect and/or remove microorganisms from contaminated water, including bacteria and viruses, to a safe level.
Class B systems (16mJ/cm²) are designed for supplemental bactericidal treatment of public drinking water or other drinking water, which has been deemed acceptable by a local health agency.