http://en.howtopedia.org/wiki/How_to_Make_the_Sri_Lankan_Clay_Water_Filter
Produced in Sri Lanka and distributed by the Sri lankan Red Cross Society with support from the American Red Cross
Ceramic Pot Filters treat water borne disease.
http://en.howtopedia.org/wiki/How_to_Make_the_Sri_Lankan_Clay_Water_Filter
Produced in Sri Lanka and distributed by the Sri lankan Red Cross Society with support from the American Red Cross