Ndur Pull Top Filtration Canteen4 1 2" x 9 1 2". BPA free OD green plastic construction. 38oz capacity. Filter life up to 100 gallons, depending on quality of source water. Filters 99. 9999% of viruses and bacteria, chemicals, VOC's, heavy metals and micro organisms, including E Coli, Giardia and Cryptosporidium. Unique design prevents leaks. Filter made in USA Country of Origin : USA