The First Need XLE ELITE water purifier is the only purifier certified to EPA Standards (cysts, bacteria and viruses) without using chemicals. This water purifier removes pesticides and provides deliciously refreshing water instantly on one pass through. Ecological, actually removes microbes using reliable molecular capture, it has ultrafine microstraining (to 0.1 microns) and other purification mechanisms. This filter features a self-cleaning pre-filter which extends the time between main cartridge cleanings. The cartridge is designed to mount directly to trail and bike bottles and dromedary bags. The sealed canister protects users from accumulated cysts. Includes a 36 inch long hose to dip into water source. Includes tote bag and gravity feed kit. Key Features:.Made in the USA.Cleanout Port extends cannister life..Average Flow Rate: 2qt per minute.Average Cannister Capacity: 180 gallons.Temperature Range: 33°F (.5 c) to 100°F (38 c).Micron Retention: 0.4.Weight: 16 oz.Pump Length: 6.25.Tube Length: 36.