RapidPure Intrepid Water Bottle Replacement Filter - The Intrepid Water Bottle Replacement Filter by RapidPure transforms your Intrepid Water Bottle into a water sanitizing powerhouse! The UltraCeram filter removes and reduces cryptosporidium, giardia, cysts, bacteria and viruses without the need for chemicals. Simply attach the filter to your water bottle to create/replace a filter system. Available in three different sizes to accommodate all your water filtering needs and the pre-filter wrap is even washable for easy removal of large sediment build up. Clean water has never been so easy, so make sure to get the RapidPure Intrepid Water Bottle Replacement Filter!