The Toto® Standard R ECOPOWER® or AC 1.0 gpm Touchless Bathroom Faucet Spout, 10 s On-Demand Flow is ideal for high-traffic spaces, providing an elegant water conservation solution. The sensor is strategically positioned underneath the spout head to accurately sense the hands for touchless use. The 1.0 gpm 10 s on-demand faucet uses only 0.18 gpc and is CEC and CALGreen compliant. The on-demand system means that water flows only when needed and cannot be accidentally left running. When hands are present, the water will flow and when hands are removed, the water will stop. The spout works with your selection of compatible Toto® ECOPOWER® or AC controller systems. Included items: spout only. Purchased separately: Compatible Toto® ECOPOWER® or AC operating controller, water supply line for G 1/2 in connection and optional mixing valve.