Single hole deck mount mixing faucet, compression cartridges with spring checks, 4-arm handles and 18" flexible stainless steel supply hoses w/ 1/2" NPSM / 5/8" compression connections. Certified to ASME A12.18.1/CSA B125.1, NSF 61- Section 9 and NSF 372. Meets ADA ANSI/ICC A117.1 requirements.