Best-selling RO water purifiers in India come with a variety of water storage capacities to suit different household needs. Common storage options range from 5 liters to 12 liters, with compact models ideal for small families and larger capacities designed for bigger households or areas with frequent water supply issues. Many models feature advanced storage tanks made of food-grade, non-toxic materials to keep water safe and fresh. Some purifiers also offer features like auto-refill systems and water level indicators for convenience. The wide range of storage capacities ensures flexibility, allowing users to choose a purifier that perfectly matches their water consumption needs.