... non pressure solar collector supply hot water for factory, hotel, school, and so on ... the heat to water tank.Features1.CE2.Suitable for swimming pool, school, army, hotel etc.3.Outstanding quality ... have singe wing and double wings solar collector for non-pressurized type.6.We have designed ... let us know, we will design a satisfactory project for you.Specification1. Split Tank Capacity: 500L, 1000L,5000L ...