As one of the industry's most technologically advanced and robust steam generators today, the Pro Series has reset expectations for achieving modern wellness at home.Now offered in three distinct models, the Pro Series combines the latest technology with THERMASOL® durability, performance and efficiency to ensure a consistent steam shower experience every time. Each Pro Series model is crafted with the same industrial grade stainless steel and lifetime warranty, plus performance-engineered to deliver constant steam at a constant rate, split-tank technology and state-of-the-art energy efficiency technology. Pro Series III offers the next level of sophistication with an advanced cleaning system and a stainless steel drain pan. Pro Series III is the only model to feature the ultimate in smart steam temperature control. THERMASOL® Steam Generator, Ultimate, Series: PRO Series III, 1/2 in NPT Steam Outlet Size, 3/8 in Compression Water Inlet Size, 208 to 240 VAC, 110 A, 1200 cu-ft Maximum Room Size, Stainless Steel, 13-15/16 in W