Rheem Marathon Thermal Storage Tank electric water heaters are designed for efficient energy storage, available in 50, 85, and 105 gallon capacities with 2-port and 3-port configurations. Specifically engineered for thermal storage applications, they feature large water connections and a tank that is impervious to rust and corrosion. Ideal for residential installations requiring robust thermal storage capabilities, these units ensure reliable hot water supply while maintaining durability and efficiency.

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