Katadyn Hiker Pro Transparent Filter USA

Model article number: 8019857 (USA version) according to the Katadyn US site.

Transparent design housing: You can visually monitor the filtration process and see when maintenance/cleaning is required.

Filtration capabilities: Filters particles down to 0.2 µm (glass‑fibre/hollow fibre cartridge) removing bacteria and protozoa; includes an activated carbon core to improve taste/odor.

Output & capacity: Delivers about 1 litre per minute under good conditions. Rated to treat up to ~1,150 litres (≈300 gallons) depending on source water quality.

Physical specs: Width ~ 76 mm, Height ~ 165 mm, Diameter ~ 61 mm, Weight ~ 233 g.

Accessories included: Quick‑connect hoses, a bottle adapter compatible with common hydration bladders, pre‑filter protector for turbid water.