Thermocast's Seabrook Drop-in 33 in. x 22 in. Double Bowl Kitchen Sink combines the strength of cast iron with the beauty of porcelain, for a lightweight sink in a high-gloss finish that resists rust, oxidation, staining, chipping and scratching. The Drop-in design and 5 pre-drilled fixture holes provide you with a variety of versatile installation options. Color: Biscuit.