LifeStraw Go Water Bottle 1-Stage 1000-Liter Replacement Filter Replacement filter fits life straw go water bottle filter Filters up to 264 gallons (1,000 liters) of water down to 0.2 Microns Removes 99.9999% of Waterborne bacteria (&gt; log 6 reduction) Removes 99.9% of Waterborne protozoan Parasites (&gt;log 3 reduction) Zero aftertaste; no chemicals or iodine