Sagan Life XStream Straw Personal Water Filter Straw 100% MONEY BACK GUARANTEE; Water filter straw purifies ANY non-salt water source; REMOVES VIRUS, BACTERIA, PROTOZOAN and is a WATER PURIFIER not just a filter; Removes 99.9999% of all bacteria, such as salmonella, cholera, and E.coli; 99.99% protozoan and parasites, such as giardia and cryptosporidium; REMOVES 99.99% VIRUS CAMPING STRAW, HIKING STRAW; Straw is 2 feet long and extends to 4 feet, convenient to drink without laying on your belly; Ideal water filter straw for hiking and awesome backpacking straw. SHARE WATER, WASH FOOD AND HANDS; Pump attachment is included; easily attaches to water purifier straw and allows you to share water, wash food, hands, and dishes with pure clean water EASY TO USE; Drink water immediately; no waiting; comfortable mouthpiece; lightweight, easy to carry, fits easily into pocket or backpack and use at any fresh water source; lakes, streams, rivers, floods; Ideal water purification straw for kids; great travel filter and survival water filter TESTED and PROVEN; PURIFIES ANY NON-SALT WATER SOURCE; Sagan Life XStream Straw Water Purification Filters have been tested and certified by independent water laboratories to safely purify 250 gallons of water; exceeds EPA water purification standards; test results available on request