SteriPEN Water Bottle Replacement Filter Cartridge SP-RC S

The SteriPEN Replacement Cartridge for the Pre-Filter and FitsAll Filter helps remove dirt and sand before you purify your water of bacteria with the SteriPEN, for more effectively clean water. Changing your cartridge on a regular schedule will greatly improve the performance of your SteriPEN. Filter water wherever you go with confidence, knowing that it will both look and taste better.