Replacement filter for Westinghouse/Electrolux fridges located in a round plastic housing inside the fridge.
The WFCB filter cartridge sits inside a white plastic cup and you will need to unscrew the cup before you can see the filter. Suitable replacement for Electrolux 1438545 and Westinghouse RS643T
Also replaces part numbers WF1CB & RG-100
This is an original filter.
Refrigerator manufacturers recommend that fridge filters be replaced every 6 months or when the "change filter" light comes on.