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Controller Expansion Modules


Expansion modules are designed to make using and expanding your modular controller as simple and straight forward as possible. By incorporating features such as built-in surge protection, ultra-durable construction, and hot-swappable installation, they are designed and built to perform dependably for a lifetime of use. Modules are specific to the brand and model of the controller.

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  1. Weathermatic SL800 2 Station Expansion Module | SLM2
    Weathermatic SL800 2 Station Expansion Module | SLM2
    On-Sale $26.95 List Price $46.85
    SKU: SLM2
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