NDUR Advncd Replacement Filter(28 &38oz)
NDUR - Replacement Filter For 28 oz. Bottle and 38 oz. Canteen.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. Filter made in USA.
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