Balboa BP7 Control System Only This unit can be wired for 120V, however, for a more cost suitable control system, use this BP100 FEATURES: 7 relays allow BP7 to operate in 32 different setups, which can power a spa with 1-4 pumps BP7 can replace any Balboa BP System while using the existing topside that is already installed on the spa (some exceptions may apply) BP7 can replace any Balboa VS or EL System when you match it with any TP or SpaTouch topside panel (some exceptions may apply) BP7 can replace any Balboa or other brand's non-low flow system when you match it with amy TP or SpaTouch topside panel (some exceptions may apply) Supports - ControlMySpa, Balboa Bluetooth Audio, Chromozon3, and Status Pro Dimensions: 17"L x 4.75"W x 11.5"H