This is our economy model that is designed to work with a high-end chemical control system. Housed in a NEMA 1 enclosure a simple selector switch and indicator lights. The EkoFlex receives feedback from the chemical control and in turn will then cause the pump and motor to operate in a way that maintains the required flow rate of the pool. The EkoFlex is limited to a single pump operation. Options on the EkoFlex are limited to under voltage/phase loss protection and limited PID operation.