The Waterdrop Refrigerator Water Filter is a pack of 4 replacement filters designed specifically for LG® LT700P® refrigerators. Made with lead-free, food-grade materials and advanced activated coconut filtration method, these filters can remove heavy metals, chlorine, mercury, copper, cadmium, VOCs, and chromium from your water. Manufactured by Waterdrop, these blue filters are guaranteed to last 6 months and provide clean, fresh water for your cooking and drinking needs.