4 PACK NEW Frigidaire EPTWFU01 Pure Source Ultra II Refrigerator Water Filter
Remove the cap of a new filter,insert it into refrigerator and turn right to lock it in place. NSF 42, 53 and 401 certified to filter out contaminants: Tested and certified by NSF International against NSF/ANSI standards 42, 53 and 401 in PureSource Ultra II ?.