Katadyn Hiker Pro Microfilter -- 8018273. New in the Box.

Removable filter protector extends cartridge life in challenging conditions. Quick connect fittings make installation and removal of input and output hoses easy. Also allows direct attachment to drink tube (1/4" ID) of hydration packs. Additional hydration connector fitting for quick filling of hydration packs.

Also includes an extra filter -- ALSO New in the Box (only taken out to photograph it).