The AquaTru Replacement Pre/Carbon Water Filter Stages 1-2 (# AT2001) is a white water filter designed for household use. Made of plastic, this filter is compatible with Aqua Optima Evolve models and utilizes pre/carbon filtration method. With a unit quantity of 1, this Aqua Tru filter is a reliable choice for maintaining clean and safe drinking water in your kitchen. Made in China, this water filter is a convenient and essential addition to your home’s water purification system.