Model 3301 and 3302
Penal-Trol® Valve to Master-Trol® Retrofit
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Retrofit valve assembly includes all components required to convert a Penal-Trol® valve assembly to Master-Trol® electronic valve control system. Complete with solenoid valve assembly, push button(s), and station wires. Retrofit works with existing or optional new Master-Trol® systems.

