The circulators shall be Rheem Rediset deluxe dual pump set incorporating two Grundfos ups20-60N circulators. The control module shall incorporate two manual switches for manual/off/auto run and run and fault indicator lights for each pump. A timer shall be incorporated to allow the user to select duty and standby times. The system shall be factory assembled on a galvanized frame suitable for wall mounting. Each pump shall incorporate unions and isolation valves on the inlet and outlet and a non return valve.