GE's most advanced filtration ever. NSF Certified to reduce VOCs (volatile organic compounds) and over 15 harmful contaminants including cysts, lead mercury, and unwanted chlorine taste and odor. Reduces 5 select pharmaceuticals including ibuprofen, progesterone, atenolol, trimethoprim, and fluxetine. Note: The contaminants or other substances removed or reduced by this water filter are not necessarily in all users water. Replacement water filter for GE and Profile brand refrigerators. Easy tool-free replacement.