Keep your Katadyn(R) BeFree(TM) Filter running like new with the Replacement Cartridge. The EZ-Clean Membrane(TM) filters out particles and debris, and with a quick clean design, this filter is as safe as it is easy! This cartridge is compatible with the Katadyn(R) BeFree(TM) Micro Water Filter System. FEATURES: Replacement cartridge fits the Katadyn(R) BeFree(TM) 0.6L Micro Water Filter System EZ-Clean Membrane(TM) filters out particles and debris Filter is easy to clean: run under or through water to shake debris loose Hollow fiber filter Filters 2.11 quarts per minute