Compatible with Delta Faucet A/C Power Supply Adapter EP73954. It plugs into any standard, non-switched 115-volt outlet in your sink cabinet and eliminates the need for batteries. Even if your home’s power goes out, your Delta Touch2O faucet can still be manually operated, so you’re never without water when you need it. Compatible with Delta Touch2O faucets with Gen 3 solenoids.Fit for Delta Touch Kitchen Sink Faucets with Touch2O Technology. Plug into any non-switched 115-Volt outlet in your sink cabinet.In the event of power loss, faucet remains operational,your Delta Touch2O faucet can still be manually operated. Fit for Delta Touch Kitchen Sink Faucets with Touch2O Technology. Compatible with Delta Touch2O faucets with Gen 3 solenoids.Fit for Delta Touch Kitchen Sink Faucets with Touch2O Technology.