Water Filter Housings for the Culligan RFC-BBSA Water Filters: 155141 Culligan RFC-BB Filter Fits 10 inch Big Blue Water Filter Housings. Fits on Culligan/USFilter/Ametek 10" Big Blue Whole House Water Filter System Fits on Culligan HD-950 Big Blue Whole House Water Filter systemCulligan Filter RFC-BB is compatible with filters: Whirlpool 149016 Whirlpool whcf- whpcbb filters Whirlpool whcfwhpcbb filters Whirlpool whef-whpcbb filters Whirlpool whefwhpcbb filters RFC-BB Product Manual (Adobe Reader Download) -->..Culligan RFC-BB Radial Flow Carbon Water Filter Cartridge Specifications: Dimensions: 9†“ 3/4" x 4 – 1/2" (248 mm x 114 mm) Micron Rating (nominal): 25 Temperature Rating: 40?F to 125?F (4.4? C to 51.7?C) & Initial # 8710;p (PSI) @ @ 2 GPM (0.06 bar @ 7.6 L/min flow (GPM): 0.90 PSI) chlorine taste and odor reduction @ Flow (GPM): > 35,000 liters @ 2 GPM (> 132,500 Liters @ 7.6 L/min) General Filter Rate: 10,000 Liters for reduction of sediment, sand, silt, rust, scale, and chlorine taste and odor Culligan RFC-BB Building Materials: Filter Filter Media: Granular Activated Carbon End Caps: Polypropylene Inner Outer Shell: Polyethylene Gaskets: Buna-N Wraps/Core: Polypropylene (4-pack)