This Sundance/Jacuzzi topside control is the 2020 plus revision/replacement of part number 6600-446. 880 Series touch screen control panel designed for Multiple pump systems. Keypad is a Trapezoid with Menu Driven Touch Screen and 4 Pin Molex Plug w/ 7' Cord. This Keypad is Compatible with the following series/system(s) - Sundance Spa Proprietary 880 Series Control Systems. Also Found in the following spa models - Sundance Spa Models (2019+) 880 Series Optima, Marin, Cameo, Altamar, Maxxus, Cambria, Capri, Aspen.