H2O Survival™ Water Filter Travel Straw MAX & H2OLIFEGUARD. Both are the Worlds highest capacity Water Purifier Travel Straw. With a maximum filter capacity to purify up to 530 Gallons of Water Bacteria, Heavy Metals & Viruses Utilizing an Exclusive Purification System of 0.01 micron Membrane/GAC and Poly-Iodine. Now with a removable screw-on adapter and neoprene/plastic water bag!
*The Travel MAX & H2OLIFEGUARD represents the much requested upgrade to our mini pocket-sized Water Filter Travel Straw for those that
wanted more capacity.