Electricity free, maintenance free, most economical water purifiers

Electricity free, maintenance free, most economical water purifiers by Watsan, India. These are manufactured based on nano-clay candles which does not allow the pathogens, metal particles and other impurities to percolate because of the size of the pores in the clay candle. Simple yet effective. No wastage; no electricity, retains all good salts and minerals needed for the body, removes iron and also arsenic with add on cartridges with high absorbent removing aresnic in ppb levels, not ppm! Impacted more than 1,00,000 households in India and growing..! We welcome collaborators, net work from other countries. The stand alone filter is just 15 US$ and with arsenic cartridge would cost extra 5 US$ FOB Chennai, India. We have larger capacity candles and tanks, where the tanks can be localized in the country to be supplied, only candles can be shipped from India. see www.watsan.in