LG LT600PC 6 Month/300 Gallon Replacement Refrigerator Water FilterLG 6 Month 300 Gallon Replacement Refrigerator Water Filter Keeping your refrigerator in tip top shape with a brand new refrigerator water filter is a smart move. By changing your LT600P water filter on a regular basis, you'll continue to reduce contaminates such as iron, partulates and chlorine in your drinking water and ice cubes. You'll notice the difference!