Single hole stainless steel single temperature deck mount faucet, stainless steel swivel/rigid gooseneck with 2.2 GPM stainless steel aerator, stainless steel ceramic cartridge with check valve, stainless steel 4-arm handleand 1/2" NPSM male inlet. Certified to ASME A112.18.1 / CSA B125.1 and NSF 372. Meets ADA ANSI/ICC A117.1 requirements.