Pentair Com Port Expansion Module 520818

The Pentair 520818 Com Port Expansion Module solves that problem by expanding your system’s communication capacity, allowing seamless integration of multiple devices. Designed for Pentair EasyTouch and IntelliTouch systems, it ensures reliable data communication between your automation panel and connected equipment. It’s the go-to upgrade for growing, fully automated pool setups. What does the Pentair 520818 Com Port Expansion Module do? The Pentair 520818 adds additional COM ports to your automation system, allowing more devices to communicate without conflicts or disconnects. It acts as a communication hub, ensuring each component—pump, heater, salt system, or interface—operates smoothly within your network. At ShastaPoolSupply.com, we recommend this module anytime a system is expanding beyond its original configuration.