http://www.amazon.in/Tata-Swach-Bulb-Water-Purifier/dp/B00E9G8LGG Price: 590.00 Sale: 54.00 You Save: 536.00 (91%) Tata Swach® BulbTM works on patented TSRFTM technology The TSRF technology is based on path-breaking nanotechnology The technology removes harmful bacteria and viruses from water and makes it safe to drink Its performance capabilities have been tested across reputed laboratories in India, the UK and Netherlands. 3000-litre purification capacity
