This is a single OEM water filter that fits Kenmore counter depth refrigerators. The manufacturer suggests replacing the water filter every 6 months. This white plastic filter has an activated carbon filter media that reduces parasites, lead, chlorine taste and smell, as well as some pesticides and pharmaceuticals. Adhere to these operating considerations to get the best results and prevent damage: flow rate: 0.5 GPM, 33-100 degree Fahrenheit temperature, 30-100 PSI.