Single compartment undermount vanity basin. 18 gauge (1.2 mm), type 304 (CNS 18/10) stainless steel. Exposed surfaces are #4 satin finished. Undercoated to reduce condensation and resonance. Includes cutout template. Certified to ASME A112.19.3-2008 / CSA B45.4-08. Center back waste location, accepts 1 1/4" (32 mm) waste assembly (not included), integral overflow at front of bowl.