Field maintainable, the Hiker PRO includes extra features for higher performance and improved versatility. - Includes field maintenance kit with cleanable filter protector to extend cartridge life in challenging conditions - To clean filter protector, simply swish it in the water - Quick-connect fittings permit easy installation and removal of input and output hoses - Lightweight and easy-to-use design makes this filter a great choice for all-around use - Filter physically removes particles, protozoa and bacteria down to 0.3 microns in size, including Giardia, salmonella, cryptosporidium and others - Glass-fiber element is pleated for increased surface area to handle silt and muddy water - Activated-carbon core adsorbs chemicals and pesticides to improve taste of water - Pre-filter at hose inlet filters to 150 microns, removing larger contaminants before they reach the main filter to increase its life span - Quick-connect fittings allow direct attachment to drinking tube (1/4") of your hydration pack - Ergonomic pump handle is comfortable and easy to pump - Includes a carry sack and bottle adapter that fits most water bottles Specifications: - Weight 11 ounces - Dimensions 6.5 x 4 x 2.5 inches - Filter medium Pleated 0.3 micron glass-fiber/carbon core - Removes Protozoa and bacteria - Output 1 liters per minute - Pump strokes per liter 48 - Field cleanable Yes Katadyn