Exclusively at Campcraft Outdoors, you get a free canvas prefilter to fit your new Grayl ($15 value) with each Grayl Geopress purchase. 
 
Requires zero setup time and makes 24 fl. oz. of clean drinking water in a blazing fast 8 seconds (5L/min) for stealth on-the-go filtration and purification. Covert Edition bottles discreetly provide clean drinking water anywhere on earth with unrivaled ease, speed & convenience. It's a highly coveted everyday carry—sip or chug, fill a hydration reservoir, fill another water bottle, or use it for backcountry cooking.