Grayl Replacement Ultralight Purifier _tab3_geopress-cartridge-we-have-you-covered the GeoPress® One-Way Valve allows

the GeoPress® One-Way Valve allows electrolytes and sport drink mixes to be added to clean purified water without compromising the integrity of the filter

Simply—Fill

Our replaceable Purifier Cartridge is suitable for the rigors of global travel

Here's where you can pick up a replacement so you can get back to drinking on the go

Also allows a GeoPress to be used with a variety of flavored drinks such as juice

Grayl Replacement Ultralight Purifier _tab3_geopress-cartridge-we-have-you-covered the GeoPress® One-Way Valve allowsNEW VERSION AVAILABLE! Get the NEW Ultrapress Cartridge The UltraPress and Ultralight replacement purifier cartridges are forward backward compatible with each other and do utilize the same purification technology. The outer shell and the flow channels do differ (horizontal vs vertical flow channels). The UltraPress cartridge's flow channels are stronger and more durable in comparison. Get the NEW Ultrapress Cartridge Purify Water. Anywhere. Our