Enjoy clean and safe drinking water wherever you roam with the ultra-compact, lightweight, reusable Sawyer Micro Squeeze Water Filtration System. With a total field weight of 2 ounces, this tiny filter fits in the palm of your hand. While small in size, the powerful Micro Squeeze removes 99.99999% of bacteria (Salmonella, Cholera, Leptospirosis, E. coli) and 99.9999% of protozoa (Cryptosporidium and Giardia) - exceeding EPA recommendations for removal rates. The Micro Squeeze also filters out 100% of microplastics (independent testing laboratory Hydration, LLC.; microbiological report S05-03). Attach the Micro Squeeze to the included drinking pouch, connect it to hydration pack tubing (sold separately), or screw it onto standard disposable bottles (28mm thread). The Cnoc 750 ml (25 ounce) pouch is ultralight, foldable, and made with extra-durable TPU to withstand any adventure. Perfect for adding to your disaster preparedness kit to ensure access to clean water during emergencies, the Micro Squeeze is great for removing harmful pathogens from residential water when boil alerts are issued. The Micro Squeeze 0.1 micron absolute filter houses a cluster of micro-fibrous tubes which use similar technology found in medical dialysis. As water passes through the side walls of the tubes, harmful bacteria and protozoa are trapped on the outer walls so you can be confident your water is safe to drink. The Sawyer Micro Squeeze Water Filter is rated up to 100,000 gallons. Sawyer individually tests each and every Micro Squeeze three times to performance standards before packaging. Sawyer Products has offered the best, most technologically advanced solutions for protection against sun, bugs, water, and injuries - everything from first aid kits developed for wilderness to point-of-use water filters that filter contaminated water to levels cleaner than U. S. bottled water.