The Atrium Single Bowl Rectangular Drop-In Bathroom Sink with Overflow features clean lines, a raised border, and a basin that harmonizes geometric angles and smooth curves into a single composition. The sinks are crafted 100% naturally and undergo a painstaking multi-step glazing and sanding process by hand to ensure maximum durability and flawless, superior design. Ceramic construction Drop-in installation Pre-drilled single hole or 8" (center to center) widespread faucet With overflow Unfinished backside Usable as sinktop 1 3/4" above counter Overflow drain sold separately Codes/Standards ASME A112.19.2 IAPMO/cUPC listed CSA B45 CMR 248 Key Features & Innovations Superior Glaze Our sinks go through multiple glazing process; the glaze is fired at a high temperature to bond the glaze to the ceramic resulting in a durable surface. Luxurious Design With a wide range of selections, our sinks merge luxurious designs with functionality. Maximum Protection Polyurethane finish inside and out that protects wood from dents, resists moisture, stains & bacteria, humidity and scratches from penetrating the wood.