Saves water, energy and money: The flow rate is automatically restricted to max. 1.2 GPM, even when the water pressure varies (EcoRight) Particularly durable: equipped with high-quality, smooth-running ceramic mixing system from hansgrohe Saves water, energy and money: The flow rate is automatically restricted to max. 1.2 GPM, even when the water pressure varies (EcoRight) This faucet enriches water with air - for a full stream of water that splashes less (AirPower) Easy operation: The included pop-up drain can be easily opened and closed with one hand Easy to install: The faucet is attached to the water connections via flexible connection hoses (3/8-inch) Extra safe: an adjustable temperature limiter protects against too hot water Connection details: Contains standard 1/2-inch connection to easily retrofit to any showerarm Installation notes: Hansgrohe recommends a licensed plumber install this product