The outdoor market's best selling microfilter. Compact design and easy operation. Chosen "Best in the bunch by a long shot" in Backpacker Magazine's field test for ease-of-use. Best choice for all-around use. Microfiltration method: AntiClog technology: 129 square inches of pleated 0.3 micron glass fiber media. Output: Up to 1 qt./minute (48 strokes/minute). Cartridge capacity: Depends on water quality. Weight: 11 oz. Height: 6.5". Hose length: 36". Includes: Prefilter, universal bottle adapter and carry bag.