GE MWF SmartWater Compatible Refrigerator Water Filter Cartridge From The Manufacture MWF Refrigerator Water Filter is easy to replace with no special tools required. No need to even turn off the water, simply turn the filter to the left to remove. A check valve stops water flow and prevents leakage. Insert a new filter and turn to the right. It replaces GE water filter part numbers GWF, GWFA, GWF01, GWF06, MWFA, and Hotpoint HWF, HWFA . This GE water filter works with a wide-range of GE and Hotpoint models and should be replaced every six months. An adapter may be needed if you have the following filters: FXRC, FXRT, MXRC, HXRT, WR97X10006, and Kenmore 46-9905. Product Description NSF-certified MWF replacement refrigerator water filter is the improved version of the GWF model, providing you and your loved ones cleaner, healthier, and better-tasting drinking water at home. By reducing contaminants like mercury, toxaphene, p-dichlorobenzene, carbofuran, alachlor, benzene, lead, cryptosporidium, and giardia, the MWF is a safe and affordable way to contribute to a healthy lifestyle. Newly tested and verified to filter 5 trace pharmaceuticals including ibuprofen, progesterone, atenolol, trimethoprim, and fluoxetine.