Hayward HPC-4-ACT E-Command 4 Controller Automation with Two GVA-24 Actuators E-Command 4 is the easy and cost-effective way to automate essential pool or spa functions Manages both 2-SPD and VSP Offers the same level of automation as On Command but with a built in sub panel Features built in electrical subpanel, entry-level control, simple to use and assists the retrofit market Comes equipped with 4 high voltage relays, 3 output valves, 4 controller with two GVA-24 actuators