The Samsung DA29-00003F Aqua-Pure Plus Refrigerator Water Filter fits Samsung refrigerators with a short round filter. The DA29-00003F is a direct replacement for the DA29-00003G, DA29-00003B, DA29-00003A, & HAFCU1 water filters which have been discontinued by Samsung and Aqua Pure. The filter uses Activated Carbon Block to remove contaminants for up to 6 months. Tested and certified by NSF International.