This PuR? Fast-Fill Filter was made for Whirlpool? side-by-side refrigerators with push button and provides easy access through the front base grille. It does a great job of reducing chlorine taste and odor, particulates, lead, mercury and more. It also retains beneficial fluoride. This model is NSF certified which ensures consumers they are drinking clean, safe water. Make sure to replace your filter every 6 months.