Easy-to-Install Replacement: Install into your Scout, Pioneer, or Intrepid in seconds. Simply remove the plastic wrapping, pull out the old cartridge, and pop the new one into place Virus Protection: Drink water confidently wherever you go. Once installed, this water filter replacement removes over 99.99% of viruses, bacteria, parasites, and more UltraCeram Technology: Pack the latest innovation as your hiking water filter. RapidPure's UltraCeram removes pathogens 100 times smaller than pathogens caught by 0.2 micron hollow fiber filters Fast Flow Rate: Quench your thirst without the wait. RapidPure has an ultra-fast flow rate that purifies as it filters Great Tasting Water: Taste water how it was meant to be. RapidPure features activated carbons that instantly remove odors and improve taste, for a water purifier you'll enjoy using