The Hydrotech 40200116 is the correct replacement control module for the following water filter systems:
The Pura 120 Volt Control Module for UV20/UVB Series is a replacement control module for the Pura UVB and UV20 Series UV water filtration systems. This water filter control features 120 volts of power and operates in UV20 and UVB systems that do not have an audible alarm or solenoid valve. This 120 volt controller is also known by part number 40200116.
Pura 120 Volt Control Module for UV20/UVB Series specifications: