The designers of the Katadyn Pocket created a water filter with longevity in mind. The design features an easy hand pump filtration system that's effective at removing harmful bacteria, protozoa, and particulates at a flow rate of one liter per minute. Constructed from high-quality steel, a ceramic filter, and with a 20-year warranty, this water filter is up for the ultimate backcountry adventures for many years to come. The only caveats are the heavy weight and expensive price tag.

Water Quality

Thanks to a 0.2-micron ceramic filter, the Pocket is effective against bacteria and protozoa such as giardia and cysts. Our testers had no complaints regarding the water quality or flavor as the filter also successfully removed any sediment and particulates even when filtering after significant rain events.

Durability and Maintenance

This is one of the metrics where the Pocket really shines compared to its competitors. Katadyn clearly designed this filter with durability and longevity in mind. The steel parts that surround the ceramic filter are as durable as it gets, and this filter comes with a 20-year warranty.

The Pocket is relatively easy to maintain, whether in the field or at home. Simply detach the base of the pump and remove the plastic sleeve before cleaning the ceramic element (with the scour pads that Katadyn includes with your purchase) until the original light color is restored to the filter. When finished, cover the ceramic filter with the plastic sleeve, apply a drop of the silicone lubricant (also provided) to the threads on the base of the pump and tighten.

Treatment Time

With a treatment time of one liter per minute, the Pocket is on par with other hand-pump models available on the market; however, it does require some patience to earn your drinking water.

Should You Buy the Katadyn Pocket?

If you're looking for a durable filter for the burliest of backcountry missions, the Pocket is a solid investment for many adventures ahead. Great water quality, easy hand pump filtration, and a competitive flow rate — the only caveats are the weight and the hefty price tag, both of which are substantial. But if you like the idea of a ceramic filter and non-plastic components, this is a great option that will last you for the long haul.