Chicago Faucets 116.123.21.1 HyTronic Gooseneck Deck Mounted Lavatory Faucet, Polished Chrome Chicago Faucets is an industry leader committed to innovation that's supported by the latest in engineering technology. Solid brass construction ensures unequalled product durability. Chicago Faucets 116.123.21.1 HyTronic Gooseneck Deck Mounted Lavatory Faucet, Polished Chrome Features: Geberit Commander Software Compatible Single Hole, Deck Mount Dual Beam Infrared Sensor GN2AH8 - Gooseneck Spout User Adjustable Temperature Control Mixer 12 Volt AC Transformer Required (Order Seperately) E2805-5 - 0.5 GPM (1.9 L/min) Vandal Resistant Spray Outlet Multiple Field Adjustable Modes and Ranges Includes Optional 2.2 GPM (8.3 L/min) rator Insert