The Zija Morcler Water Filtration Purification System in Gray 103529 utilizes reverse osmosis filtration method to provide clean and purified water. This countertop system is compatible with Aqua Optima Evolve model for added convenience. Designed by Zija, this water filtration system ensures a reliable and efficient way to remove impurities and contaminants from your tap water, offering you safe and refreshing drinking water.