Single basin design provides maximum available workspace Covered under Kohler's limited lifetime warranty The distinctive, modern design of the Vault sink lends a contemporary vibe to any kitchen This sink features tightly angled corners to maximize basin space and a sloped bottom that helps with draining and clean up Hand crafted from 18-gauge stainless steel giving both the aesthetic beauty you want and the durability and longevity you need Top-mount or Under-mount installation options Rear drain location increases workspace area in the sink as well as storage area underneath All hardware needed for installation included