R40923-015 | L130-40F LIMIT SWITCH | Armstrong Furnace End Connection_FIP UnionxPEX F1807 The Lennox 13H39 is the

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R40923-015 | L130-40F LIMIT SWITCH | Armstrong Furnace End Connection_FIP UnionxPEX F1807 The Lennox 13H39 is the**Armstrong Furnace L130 40F Limit Switch** The Armstrong Furnace L130 40F Limit Switch is a critical component for ensuring the safe operation of your heating system. This switch acts as a safety measure, protecting the furnace from overheating by automatically shutting it off when the temperature reaches a predetermined level. **Features and Benefits:** * **Accurate and Reliable:** Precisely detects temperature changes, ensuring timely shutdown to