Concealed straight single valve with brass body,polished chrome plated brass adjustable wall flange and sleeve,1/2" NPT female outlet,metering cartridge,blank push button cap and 1/2" NPT female inlet with union coupling. Certified to ASME A112.18.1/CSA B125.1,NSF 61- Section 9,and NSF 372. Meets ADA ANSI/ICC A117.1 requirements.