See pics for details on this filter. Note the filter condition, looks like it was used once.
Pur For Katadyn Hiker Water Filter Cartridge Replacement Backcountry Holiday
Katadyn Hiker Water Filter Cartridge Replacement Backcountry Holiday Series
Katadyn Hiker Pro Hand Pump Water Filter Backpacking Used Camping Filter
Katadyn Hiker Pro Transparent Water Filter - Ideal for Hiking & Camping
Katadyn Hiker Pro Water Filter Maintenance Kit Water Purifier Tool Disinfection
Katadyn Hiker Pro Water Filter
