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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 PL4800 & SL4800 Controller Expansion Module | SLM12-4800
    Weathermatic PL4800 and SL4800 Controller Expansion Module | SLM12-4800
    On-Sale $148.95 List Price $229.68
    SKU: SLM12-4800
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