ReplacementBrand RB-Carbon-W Comparable Filter for the GE FXWTC and Culligan D-10 Model Comparable to the GE FXWTC and Culligan D-10 Water Filters Fits in other brand housings that use the standard 10 x 2.5 inch filters Lasts for 6 months or 600 gallons 5 Micrcon Filter Reduces Chlorine taste & Odor as well as sand, soil, silt, sediment, and rust.