Kohler K-3671-NA 8 Degree 18 Single Basin 16 Gauge Stainless Steel Bar. 8 Degree 18 Single Basin 16 Gauge Stainless Steel Bar Sink for Undermount Installation. Kohler K-3671 Key Data. 18″ L x 18″ W x 10-3/16 H. Made of 16 gauge Stainless Steel. Single basin design provides maximum workspace. Channel grooves optimize drainage. Sink Rack / Wine Glass Rack included. Includes mounting clips & hardware. Includes cut out template. Length: 18 (left to right). Width: 18 (front to back). Height: 10-3/16 (top to bottom). Drain Connection Size: 3-5/8. Minimum Cabinet Size: 21 (minimum left to right cabinet dimension). You’re already purchasing the item. With our dynamic pricing model, our prices are always competitive. Our prices are some of the lowest that you will find on the internet. Rest assured that you’re getting a good deal when purchasing with us.