ReplacementBrand RB-FXSVC Comparable Filter for the FXSVC, Culligan D-250A, Pentek P-250 and P-250A Dual Stage Filters, 2-Pack Comparable to the GE FXSVC, Culligan D-250A, Pentek P-250 and P-250A Water Filters Fits in other brand housings that use the standard 10 x 2.5 inch filters Lasts for 6 months or 600 gallons Used in sequence with the white filter first, then the green filter Reduces Chlorine taste & Odor as well as sand, soil, silt, sediment, and rust.