Survivor Filter - 0.05 Micron Portable Water Filter Straw with a Cleanable UF Membrane, Replaceable Carbon Filter (Reduces Metals and Improves Taste) and 6 Cotton Pre-Filters for Hiking and Emergency BETTER FILTRATION AND OUR USA TESTS PROVE IT. Proven protection against tested Virus, Bacteria and Staph. Just Ask us for Copies of our Tests!. LASTS LONGER THAN THE COMPETITION: Never throw it away thanks to the 3 Removable Internal Filter Stages - Membrane Ultra Filter which Lasts up to 100,000 Liters (26,417 Gallons), Replaceable Carbon Filter that last up to 1000 Liters (264 Gallons) and are simple to change and the Cotton Pre-Filters which last 264 Gallons a Piece (5 Extra Cotton Pre-filters included). For a Limited Time  Buy A Replacement Ultra Filter for 50% when purchased with the Straw or Squeeze Kit ULTRA LIGHTWEIGHT AND INCLUDES PROTECTIVE MOUTHPIECE TO KEEP BACTERIA OUT: Bacteria will never get into the mouthpiece of your device thanks to our proven 0.05 Micron filtration and the Special Flip Top and Mouthpiece. Plus the Survivor Filter is extra light at a weight of 3.5 ounces (100 grams) and is only 7 inches long for easy storage! SCREWS INTO MOST WATER BOTTLES AND CANTEENS: Use as a squeeze system with the Survivor Filter Canteens, Screws into most standard Water Bottles such as a Dasani or Smart Water OR Drink directly from fresh water source like a Straw. LIFETIME WARRANTY AND 100% COVERED BY MONEY BACK SATISFACTION GUARANTEE: If For Whatever Reason you Don't Love Your Survivor Filter, Simply let us know and We Refund Your Money. For a Limited Time, get our new 2 Pack Hard Sided Water Bottles for 50% off with Purchase of the Straw.