Aqua-Pure® brand offers a complete line of water filtration and water treatment products to provide you and your family with clean, safe, great tasting water. Aqua-Pure is the choice of quality conscious plumbing professionals; builders, and specifiers around the world. Your whole house filter is located where the main cold water line enters your house. These Aqua-Pure standard whole house filter replacement cartridges reduces dirt, rust, and sediment particles. By filtering all water as it enters your home, you are prolonging the life of all major appliances that use water such as water heaters, dish washers, and washing machines.