Includes collapsible pouches that are made from durable Mylar foil (100% BPA FREE), can be rolled tightly for easy packing, and can be reused hundreds of timesThe Squeeze System has a removable push/pull cap built right in, so you can spray water straight into your mouth or use it to fill a water bottle; fills most water bottles in 30 seconds.The PointONE filter removes 99.99999% of all bacteria, such as salmonella, cholera Leptospirosis, and E.coli; removes 99.9999% of all protozoa, such as giardia and cryptosporidiumWe’ve included syringe to backflush the filter for an ability to maintain the filter in the field as well as to promote a high-flow rateThe PointOne will also fit the threads on most bottles of water that you buy at a grocery store; great for international travelIncredibly easy to use, The Squeeze System comes with simple cleaning and maintenance