For family 6-9 person Warranty : 5 Years (on-Tank), 7 years on (Panels) Tank Volume- 300 LPD Inner Tank material- Stainless Steel (SS-316) Inner Tank Thickness : 2 mm Special Protection : Sacrifical Anode Rod for fighting water hardness Outer Tank Material - Galvanized Power coated No of Panels: 3 Pressure Handling Capacity: 8 bar Water Hardness handling capacity: Upto 600 ppm Electrical Backup Coil: Extra