The Original Portable Water Purifier&trade; by Caribou Camping Co. | The ONLY Purifier that can remove 100% of Viruses. Also Includes a Velvet Bag, a Hard Case that Doubles as a Cup, and 1 Set of Replacement Filters. | Made of Impact Resistant ABS Plastic | Highest Filtering Precision in the World at 0.01 Microns | Easy to Assemble and Use | Pump Style | 1000 Liter Capacity | Cleanable/Replaceable | Perfect for Camping, Hiking and Backpacking. Get instant access to clean water anywhere, without using chemicals or having an after taste. Perfect for Backpacking, Hiking, Fishing, Camping, Hunting, Traveling and Emergency Preparedness. Very easy to use. Simply place the pre-filter in the water then start pumping. Pumping does not take much force at all, you'll get 500 ml of purified water every minute, only pressing gently. Extremely lightweight and compact. It can fit in your pocket and only weighs 8.6 oz. Tough, rugged, and impact resistant! Constructed with a specially formulated ABS shell, your filter will last for many years and you'll never have to worry about it breaking. No more boiling water! Since our pump uses a 0.01 Absolute Pore Size Micron Filter and a Carbon Filter, which removes 100% of all Bacteria, 100% of all Protozoa, 100% of all Viruses, and 99.99% of all Chemicals and Heavy Metals. The filters also have a filtration capacity of 1000 Liters, but it can be extended, almost infinitely, by regular cleaning. However, the Carbon Filter will have to be replaced every 7 months of daily use.