Profile: E Squared, Inc. is an manufacturer of custom instrumentation solutions for original equipment manufacturers and systems integrators. Our products include filter minder controller systems and stark control system. Our FilterMinder simplifies the automation of filtration management for a broad variety of swimming pools and fountains. This self contained control system integrates the electronic controller, multiport valve, pump & heater control relays & power transformer that formerly required separate enclosures and resulted in additional field wiring