The Hydrotech 40200081 is the correct replacement ballast for the following water filter systems:
The Pura 220 Volt Control Ballast for UV1/UV Addon is a replacement ballast for the Pura UV1 and UV Addon Series Water Filtration Systems. This electronic ballast features 220 volts of power. This 220 volt ballast also includes a European plug for international use. This ballast for UV systems ensures proper water purification for your UV1 and UV Addon systems.
Pura 220 Volt Control Ballast for UV1/UV Addon specifications: