The Last Filter You Will Ever Buy: An Engineering Audit of the Katadyn Pocket

Published on April 2, 2025, 3:14 p.m.

In the modern backpacking industry, the dominant design philosophy is "lighter is better." We have seen the rise of hollow fibe…

$170 Ceramic Block: Why Depth Filtration Beats Hollow Fiber Physics

Published on April 3, 2025, 3:39 a.m.

In an era of $20 straw filters and disposable plastic cartridges, the **Katadyn Pocket Replacement Element** stands as a defian…