The Taco Clock Timers and Temperature Aquastat are designed to operate Taco Circulators for domestic hot water recirculation during peak demand periods. The 24-hour clock timer can be set in 15 minute on/off intervals. A digital 7-day programmable timer can be set to run at varying times and intervals each day. The timer enclosures feature rugged steel construction. Temperature control is easy with the Aquastat — automatically ON at 95˚F and OFF at 115˚F. Adaptable to any 00® Series Circulator.