LG LSC22991ST Water FilterYour LG LSC22991ST water filter is one of those quiet fixescleaner water, better taste, and ice that just looks right. It uses an LT800P replacement water filter, made to fit properly and keep everything flowing smooth. No fuss. Just works. It helps improve water quality with every pour, cutting down chlorine taste and everyday impurities. And yeah, its NSF 42 and 53 certified, so its doing what it says. You might not notice it every day but once it