Chicago Faucets 116.223.21.1 Deck Mounted HyTronic Gooseneck 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 un equalled product durability. Chicago Faucets 116.223.21.1 Deck Mounted HyTronic Gooseneck Lavatory Faucet, Polished Chrome Features: • Single Hole, Gooseneck Deck Mount, Electronic Lavatory Faucet with Dual Beam Infrared Sensor • GN2AH8 - Gooseneck Spout • E2805-5 - 0.5 GPM (1.9 L/min) Vandal Resistant Spray Outlet • User Adjustable Temperature Control Mixer • 6 Volt Lithium CRP2 Battery (Included) • Stainless Steel Hoses Included • Multiple Field Adjustable M odes and Ranges • Includes Optional 2.2 GPM (8.3 L/min) Aerator Insert • Geberit Commander Software Compatible • ASME A112.18.1M • CSA B125 • ADA ANSI/ICC A117.