The storage varies from 100-15000L.As for the store tank above 20000L, recommending the use of outdoor store tank, which is made of stainless steel SUS316L and SUS304 and has good heat preservation. He associated part is below: .Stirrer .Inlet and outlet of material .Man Input hole .Thermometer .Liquid level indicator. High and low liquid level alarm .Housefly-proof and Dust-proof breath hole .Sterilization sampling hole .Gauge