Capacity: 80L-200L 1. It has good price, install conveniently and reliable quality. 2. SUS304-2B inner tank material(310mm diameter, 0.58mm thickness) 2. PVDF outer tank material(4200mm diameter, 0.35mm thickness) 3. Galvanized steel(stainless more than 10 year) 4. New technology vacuum tubes Φ47*1500mm/Φ58*1800mm 5. Low angle of support stand 6. Heat protection with 55mm thickness insulation(polyuthane foam)