LG Refrigerator LFX25978ST (SB/SW) 00/01 Water FilterYour LG LFX25978ST water filter employs an LT700P compatible water filter to make things easier cleaner water, better taste, and clearer ice. It works with models like **LFX25978ST, LFX25978SB, and LFX25978SW**, including the 00 and 01 versions, with no problems. It helps get rid of common pollutants, sediment, and the taste of chlorine. And yes, it is NSF 42 and 53 certified, so it really does what it says it will do. You don't think about it much