RepairClinic Item #1156599
GE Refrigerator Water Filter. If you have never installed this new style filter or your old filter was made by Culligan you may need the adapter to install it.
Manufacturer Number MWF
Filter adapter for "SmartWater" filtration system. Use when replacing FXRC, FXRT, MXRC, HXRT or WR97X10006. Use when replacing 46-9905 for the first time.