This Pentair 520500 Protocol Adapter IntelliTouch ScreenLogic2 Interface is an essential part for your pool equipment. It is compatible with Pentair brand and comes with interchange part numbers 520489 and 520535. With this interface, you can easily control your pool equipment and monitor its performance. It is perfect for those who want to keep their pool clean and healthy. Get this Pentair 520500 Protocol Adapter IntelliTouch ScreenLogic2 Interface today and enjoy a healthy pool all year round. New, Protocol adapter only. Interface Wireless antennas not included.