20" Whole House Filter System Replacement Filter Cartridge Suitable for all Big Blue or Big White 20″ x 4.5″ Filter housings.
 
Reduces: Chlorine Taste & Odor, Medium-Fine Sediment
Micron Rating: 25
Enjoy cleaner, better tasting water throughout your home with sediment and chlorine taste & odor reduction.
Achieve crisp water without the wait - minimal drop in water pressure AND reduced carbon fines ("specs" commonly associated with GAC styled filters) through the unique radial flow design.
Tested and Certified by NSF International to NSF/ANSI Standard 42 for your peace of mind.