Clack Pc Board 3 button Timer
ircuit Board V3818TC with 3 button controller used for Clack WS1 / W1.25 timer clock Valves and other “brands” that use the Clack type of valve under their private label.
3 button boards all come with Battery Back up now. Older versions did not ( cross reference with old PN V3108TC )
Available on backorder