The Nikken 1 Waterfall Gravity Water Filter Purifier System is a clear water filter designed to remove chemicals from your tap water. With its gravity-fed system, it is easy to use and maintain. The system is compatible with the Aqua Optima Evolve model, providing a convenient option for those looking to purify their water at home. The Nikken brand ensures quality and reliability in water filtration, making it a great addition to any kitchen or dining area.