KOHLER K-5479-5U-7 Riverby Undermount Single-Bowl Kitchen Sink, 25" x 22" x 5-7/8", Black Black — Kitchen Sinks

The KOHLER Riverby K-5479-5U-7 is a single-bowl undermount kitchen sink in enameled cast iron, finished in KOHLER's Black Black colorway. Cast iron with a fired enamel coating is a long-standing choice for kitchen sinks because it resists chipping, cracking, and burning far better than lighter-weight materials, while still being easy to keep clean.

The bowl slopes toward a single offset drain, which helps water run off rather than pool at the bottom, and the sink is drilled for 5 oversized faucet holes, giving flexibility for a faucet plus multiple accessories like a soap dispenser, air gap, or hot water dispenser. It's also ADA compliant, and at 25" x 22" x 5-7/8" it offers a wide, shallow-enough basin that's easy to reach into for everyday washing.