Reduces 7 contaminants, including pesticides, waterborne parasites, lead, asbestos and industrial chemicals (NSF certified). Reduces chlorine taste and odor. Certified to fit MAYTAG and JENN-AIR side-by-side refrigerators. Filter compartment is in the top right corner of the refrigerator. Replace filter every 6 months or 250 gallons to maximize contaminant reduction.