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Proficient in water heating and water treatment, A. O. Smith has combined its expertise in these two areas to achieve unparalleled protection with its X3 Scale Prevention Technology – now included on A. O. Smith's suite of condensing gas tankless water heaters. This unique new technology prevents scale buildup in a unit, eliminating the need for descaling maintenance, tripling the expected lifetime of a unit and enabling it to run at like-new performance and efficiency. Tankless units with X3 Technology are equipped with the industry's only limited warranty with no exclusions for scale-related failures.
A. O. Smith Corp.
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