GeoPress® Purifier Cartridge

Three weeks into a backcountry trip and the water still tastes clean, which is more than I can say for the cheaper cartridges I've tried. I've pushed it past thirty cycles through some pretty silty streams and it's holding up exactly as promised. It's a relief not to haul extra bottles when the 250-

I’ve been using this cartridge for a few weeks now and the water flow is still strong, which makes me trust the 350-cycle claim. It handled some pretty silty creek water without any noticeable slowdown.

I replaced the old cartridge after about 300 cycles, and this new one made the water taste noticeably cleaner. The 65-gallon capacity gives me plenty of trips before needing another swap.