The Pentair COM Port Expansion Module 520818 is the essential upgrade component pool contractors need to maximize IntelliTouch and EasyTouch control system capabilities. This professional-grade expansion module enables seamless integration of multiple Pentair accessories while providing reliable RS-485 communication for IntelliFlo pumps, making it indispensable for comprehensive pool automation installations.

Commercial Installation Benefits

Designed for professional pool contractors, this expansion module reduces installation complexity by providing three dedicated COM ports and four RS-485 terminals in a single unit. The complete kit includes all necessary mounting hardware, cables, and detailed installation guide, minimizing job site delays and ensuring consistent, professional results that protect your reputation.

Why Pool Contractors Choose MT Pools

MT Pools delivers superior customer service with expert technical support for complex automation projects. Our B2B wholesale pricing structure maximizes your profit margins while our reliable inventory ensures critical components like the 520818 are always available when your projects demand them.

Frequently Asked Questions

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Streamline your next automation project with the Pentair 520818 COM Port Expansion Module from MT Pools. Our team provides the technical expertise and reliable service that keeps your installations on schedule and profitable.