American Standard 4175700.0019999999 2.2 GPM Colony Choice 1-Handle Kitchen Faucet, Polished Chrome Ceramic Disc Valve Cartridge - assures a lifetime of drip-free performance Cast Brass Waterways with "City Shanks" - strong and durable and integral tabs on casting provide a wobble-free installation Memory Position Valving - allows user to turn valve on and off at preferred temperature setting without readjusting handle position each time Large "Comfort Zone" - allows easy fine tuning of temperature Simple Installation - fast and easy one person installation. Faucet drops in from top. Quick spin nuts secure faucet in place