panel material stainless steel tank capacity 30,,40,60,90,120,150,200litres votage 220v this electric hot water dispenser is designed for heavy duty. best for hotel and restaurant. it have some advantage such as fast heating, large water tank, and rust free. that means it could supply water for more than 60 people at same time. also you don't have to worry about rust at all.PRODUCT NAMEPOWER(KW) ...