Check the listing for details. Filters Fast FF10BBS-25 Carbon Water Filter Replacement For FXHTC and RCF-BB. Condition: New. Listed at 25.95 USD. Filters Fast FF10BBS-25 Compatible Water Filter For FXHTC and RCF-BB The Filters Fast FF10BBS-25 compatible gradient-depth radial-flow carbon water filter is a money-saving alternative to the Pentek RFC-BB. With a filter rating of 25 micron, this filter has no problem stopping harmful contaminants that are invisible to the human eye. No need for complex filtration materials or expensive alternatives with this workhorse of a filter. Insert the filter into any standard size housing that accepts 4.5"x10" filters, connect the water lines, and you'll have water that is free of sediments and has fewer chlorine tastes and odors.This filter should be changed every six months for optimal performance. Filter Specifications: Part number: FF10BBS-25 Replaces part number: RFC-BB Filter Rating: 25-micron filter Filter Media: Radial-flow carbon; recommended for whole-house Service Life: 5,500 gallons; 6 months Dimensions: 4-1/2" x 10" Meets NSF Standard: 42 WQA Gold Seal The Filters Fast FF10BBS-25 filter cartridge fits the following water filter housings: American Plumber WRC25HD W10-PR GE FXHTC GE GXWH30C W15-PR WHKF-WHPCBB Standard size 10" housings with a 4-1/2" diameter