4" wall mount electronic sensor faucet with polished chrome plated brass body with 4 1/8" rigid gooseneck, 2.2 GPM vandal resistant aerator, AC/DC control module with internal flow control setting switches, temperature control mixing valve with integral check valves, hydro-generator power supply and 18" flexible stainless steel supply hoses with 3/8" compression connections. Certified to ASME A112.18.1/CSA B125.1,NSF 61-Section 9, NSF 372 and UL 1951. Meets ADA ANSI/ICC A117.1 requirements.