MWF, MWFP, MWFA, MWFAP, MWFINT, GWF, GWF01, GWF06, GWFA, HWF, HWFA, FMG-1, FMG. 46-9991, 46 9991, 469991, 9991, 46-9996, 46 9996, 469996, 9996. Compatible Filter Models with GE. 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 – U and PureSource Ultra II – M for reduction of claims on the performance data sheet.
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