The Everpure VOC-1 water filter is a quick change replacement cartridge for the Everpure ROM III RO System and the 1 replacement filter for the Everpure QC4-VOC system, The Everpure VOC-1 water filter reduces Volatile Organic Chemicals (VOCs), including trihalomethanes (THMs), Reduces chlorine tastes and odors, Reduces arsenic, barium, cadmium, chromium, copper, fluoride, lead, nitrate/nitrite, selenium, radium, cysts, and sodium, Effectively reduces methyl tertiary-butyl ether (MTBE), Sanitary quick-change design makes maintenance easy, Specifications:, Capacity: 500 Gallons (1,892 L), Flow Rate: 1/2 GPM, instructions:, Flush the Everpure VOC-1 filter cartridge per Installation and Use Manual, The Everpure VOC-1 water filter should be changed every 500 Gallons, It is Not possible to be specific about usage limits because turbidity and other aspects of water quality are unpredictable, SKU: CWD611