Balboa 4 button TP400 / TP400T Touchpad for Balboa BP601, BP2100, Revolution, and other Balboa BP controllers. The TP400 is part of Balboa's BP Wifi ready range & comes complete with a 4 black plastic pins connector. It is designed to work with BP Series of hot tub control systems. The sleek panels have LCD displays that have moving function indicator icons, maintenance reminders, and service alerts on the easy-to-read screen.