Assistant tank:

1.Material of inner tank:  SUS304/2B stainless steel

2.Material of outer tank: SUS304/BA stainless steel/Galvanized color steel

3.Capacity: 5L, 8L, 10L,12L, 15L

4.Feeder tank is used to supply water to main tank of non-pressure or heat exchanger type solar water heater, when water level in main tank lower, it can supply water to it automatically, when water level higher, which also can stop supplying automatically