KOHLER touchless wall-mount faucets with AC power options allow for long life, low maintenance functionality for yours to come. Required for Memoirs¬Æ wall-mount Touchless faucet trims. 0.5 gal/min (1.9 l/min) flow rate. On demand on and off. 30 second maximum cycle time. Ideal for use with KOHLER Vessels. Requires AC plug-in power supply. Brass construction.