KOHLER Riverby 27 in. Undermount Single Bowl Black Cast Iron Kitchen SinkKOHLER Riverby 27" Black Cast Iron Kitchen Sink Crafted from durable enameled cast iron, the KOHLER Riverby 27" undermount sink offers timeless elegance and reliable performance. Its large bowl and sloped base minimize water pooling, while included accessories like a custom fit colander with cutting board enhance versatility. Key Features: Material: Durable enameled cast iron resists chipping and cracking Installation: Undermount design creates a