Single compartment self rimming drop-in sink with faucet ledge. 20 gauge (0.9 mm), type 302 (CNS 18/8) stainless steel. Exposed surfaces are #4 satin finished. Undercoated to reduce condensation and resonance. Includes factory applied rim seal, cutout template, and factory installed EZ TORQUE™ fasteners. Certified to ASME A112.19.3-2008 / CSA B45.4-08 Center back waste location. Includes 3 1/2" (89 mm) crumb cup strainer with 1 1/2" (DN38) brass tailpiece.