Com Port Expansion Module Compact Plastic Replacement Part | Pentair | 520818

The Pentair Com Port Expansion Module (520818) simplifies pool operation by expanding your automation capability and allowing more equipment to be controlled from a single interface. Use this Com Port Expansion Module to increase the number of connected devices your Pentair automation system can manage — saving time and reducing manual adjustments.

Designed for busy pools and growing setups, this expansion adds Com Port connections to your control system so you can wire in extra pumps, valve actuators, chlorinators, heaters, and other compatible devices. It transforms how you manage your pool by enabling centralized control, precise scheduling, and remote management from your existing dashboard, boosting energy efficiency and overall convenience.

• Expands Com Port capacity to connect additional equipment beyond the base system
• Plug‑and‑play wiring simplifies installation and reduces setup time
• Centralized control and scheduling from a single control panel
• Support for remote management and real‑time status updates
• Durable, pool‑environment design built for reliable operation in outdoor circuits

If you’re upgrading an aging setup or planning a larger pool, this module offers installation compatibility with your Pentair automation ecosystem, helping you scale without replacing core hardware. Add to cart to simplify your pool automation today.