Msi 17-By-14-Inch Oval Undermount Ceramic Porcelain Bathroom Vanity, White. Oval in shape, this beautiful white 19 1/2? undermount vanity sink is crafted of durable porcelain to meet the demands of everyday use. Its slight coloring and classic shape work well with a wide variety of design styles in master baths, guest baths, and powder rooms. Easy to clean, this porcelain sink features an 8.125? (Exterior Dimensions) deep basin and single overflow hole, making it as practical as it is elegant. The perfect complement to your bathroom vanity top, you can count on this sink to provide years of enduring beauty. Exterior Dimensions: 19.5" x 16" (nominal - actual may vary by .25") Interior Dimensions: 17.5" x 14.375" (nominal - actual may vary by .25") Bowl Depth: 6.5 inches (Interior)/ 8.125 inches (Exterior). Cabinet Requirements - Fits 21 inch cabinet base minimum Sink has a 1.68 inch drain diameter. With overflow