Pentair 520442 I-Link Home Adapter Interface Replacement IntelliTouch Pool and Spa Automatic Control Systems I-Link home adapter interface replacement Fits Pentair IntelliTouch pool and spa automatic control system Enables homeowners using Home Automation systems such as Elan, Crestron, AMX, Vantage, Lutron, Control 4 and others to control IntelliTouch basic features via their home automation control interface