The Aqua-Pure APUV5 Ballast R is the correct replacement ballast for the following UV systems:
The Aqua-Pure Replacement UV Ballast For APUV5 is an electronic ballast that is compatible for use with the Aqua-Pure APUV1, APUV2, APUV5, and APUV8 ultraviolet filtration systems. This UV ballast creates less heat, operates smoothly, and prevents unit shutoffs by handling variances in power supply. The APUV5 ballast also delivers constant ultraviolet output over many voltages and frequencies.
Aqua-Pure Replacement UV Ballast For APUV5 specifications: