The PENTAIR RESIDENTIAL FILTRATION GRO-2550 is a 4-stage reverse osmosis system that delivers up to 50 gallons per day of purified water. This system effectively removes impurities, including chlorine, lead, and other contaminants, ensuring high-quality drinking water. Its compact design allows for easy installation under kitchen sinks, and it includes all necessary components for setup. The GRO-2550 meets NSF standards for water quality, making it a reliable choice for residential use. Enjoy the benefits of clean, great-tasting water with this efficient filtration system.