Pentair Com Port Expansion Module | 520818

Pentair Com Port Expansion Module - #520818 Features and Benefits COM port expansion module replacement Fits Pentair IntelliTouch, EasyTouch pool and spa automatic control systems Also fits Pentair Compool to EasyTouch upgrade automation systems Measures 14-1/2-inch length by 12-1/2-inch height by 13-1/2-inch width