Culligan CUGMW Refrigerator Water Filter - Compatible Fit & Replacement for GE MWF. All other trademarks are the property of their respective owners. Culligan Provides Better Water - For over 80 years, Culligan’s water filtration systems have improved water quality for thousands of families worldwide. Filters 19 Impurities - Reduces lead, asbestos, chlorine taste & odor, 8 pharmaceuticals, and cysts. Certified by IAPMO R&T against CSA B483.1, NSF/ANSI 372 for low lead content, NSF P473, NSF/ANSI Standard 42, 53 and 401. Substances reduced by this filter are not necessarily in all users’ water.