Armstrong 621

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The Armstrong 621 is a water heater model manufactured by the Armstrong International company. It is a storage-tank water heater designed for both residential and commercial applications, with a capacity ranging from 30 gallons to 120 gallons. The 621 model is specifically designed to provide an efficient and reliable source of hot water for everyday use, with advanced features such as a high-efficiency glass-lined tank, a factory-installed dip tube, and a premium-grade anode rod to ensure a longer service life. Other features of the Armstrong 621 water heater include a seismic brace for additional stability, a sealed combustion system for better efficiency and safety, and a low-boy design that saves valuable floor space. Overall, the Armstrong 621 water heater is a reliable and efficient choice for anyone in need of a dependable hot water supply.