ReplacementBrand RB-D30 Comparable Filter for the Culligan D30 and GE FXULC Model Comparable to the GE FXULC, FXUVC, and Culligan D30 Water Filters Fits in other brand housings that use the standard 10 x 2.5 inch filters Lasts for 6 months or 600 gallons Reduces Chlorine taste & Odor as well as sand, soil, silt, sediment, and other impurities Nominal 0.5 Micron Radial Flow Activated Carbon Block Filter