Armstrong Air 73W20 Limit Control
Armstrong Air 73W20 Limit Control
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$54.74 USD
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$54.74 USD
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The Armstrong Air 73W20 limit control is a reliable safety switch that monitors furnace temperature and interrupts operation if it exceeds a 175°F limit, protecting the heat exchanger and system components from overheating. It serves as a direct OEM replacement (part 102857-07) to restore safe, dependable furnace operation.
SKU:205479
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