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The Rheem SP18311 Lock Switch Kit is designed for Marathon water heaters to help improve equipment safety and prevent unauthorized access. This water heater switch kit includes the necessary locking components and hardware for installation and dependable operation.
This product is essential for maintaining safety and security with Marathon water heaters.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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