A.O. Smith ATI 310U 5.3 Description

A. O. Smith · Tankless · Natural Gas · Energy Star 190,000 BTU tankless gas water heater for homes with up to three bathrooms. The 310 Series is A. Smith's most popular and versatile tankless model . It features a maximum flow rate of 8 GPM, providing enough hot water for three showers in warm climates, or up to two showers in colder climates at the same time.« less