The Serin deck-mount commercial faucet from American Standard includes a self-adjusting sensor that takes the sink size and other factors into account. A hygienic sensor allows for hands-free operation. This easy-to-maintain faucet is vandal resistant with innovations that help it to last longer. Self-Cleaning Solenoid Reduces Maintenance: Integral wiper spring prevents clogging and run-on. Easy to Service Integrated Strainer: Patented in-line strainer protects the solenoid from debris. Strainer is enclosed in removable debris cup for easy service.