The Paramount 004-302-4408-00 Six Port Valve Module with Base O-Ring is the perfect replacement part for the Paramount in-floor cleaning systems. Located in between the top dome and the base of the water valve, this module is what helps distribute water to the infloor cleaning heads throughout your pool. Housing the cam plate and gear assembly, the Six Port Valve Module requires no electricity to operate and works automatically when the pump is running. Alternative SKU - 004-302-4408-00.