Balboa® – BP7 4.0 KW Control Box Bundle With TP600 Topside Control – 50-BP7-600-40-K. The BP is the most reliable and. Widely used system in the industry. Supports all TP and SpaTouchT topsides (LED, Color LCD and Touchscreens). Supports all BP ancillary products (ControlMySpaT, BBAT, CZT and Status Pro). Balboa BP7 Control System Only 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 11.5H.