The PUR MAXION CRF-950Z 3 Pack Replacement Water Pitcher Filters are designed to provide clean and safe drinking water for your household. These filters are compatible with PUR brand pitchers and are made of plastic material with a blue color. They have a 2-stage filtration method using carbon/charcoal to remove contaminants such as mercury. With a capacity of 40 gallons each, this 3 pack ensures that you have an adequate supply of clean water for your needs. Perfect for keeping your water pure and fresh, these filters are a convenient and efficient solution for your home.