GE's exclusive Advanced Filtration system for GE bottom freezer refrigerators has been tested and verified to remove 98% of 5 trace pharmaceuticals. The filter removes Ibuprofen, Atenolol, Fluoxetine, Progesterone and Trimethoprim. Not all pharmaceuticals may be present in your tap water. GE guaranteed fit Compatible with select GE french-door refrigerators 6 month filter life; for best filtration results, filter cartridge should be replaced every six months or 300 Gal. replace sooner if flow rate noticeably declines Premium filtrationCertified to reduce chlorine-resistant cysts, lead, select pharmaceuticals and 15 other contaminants Easy...