A. O. Smith Corporation is a prominent industrial company that operates through two primary segments: North America and Rest of World. The North America segment, which accounts for approximately 75% of the company's total revenue, manufactures and markets comprehensive lines of residential and commercial gas, electric, and heat pump water heaters. It also produces high-efficiency boilers and water treatment products under well-known brands such as A. O. Smith, State, Lochinvar, and Aquasana. The Rest of World segment, generating the remaining 25% of sales, primarily serves China, India, and Europe, offering similar water heating and purification products tailored to regional consumer preferences. The company's business model benefits heavily from the replacement market, which provides a steady stream of recurring revenue and offers resilience against cyclical downturns in new residential and commercial construction. A. O. Smith holds a dominant duopoly position in the North American water heater market, giving it significant pricing power and economies of scale. In recent years, the company has strategically expanded its footprint in the global water treatment industry through targeted acquisitions, such as the purchase of Pureit from Unilever, to diversify its revenue streams and capture growth in emerging markets.