STYLISH® 20 inch Rectangular Undermount Ceramic Bathroom Sink with 2 Overflow Finishes With a premium baked-on glaze for an easy-to-clean high-gloss finish and a smooth, non-porous surface this STYLISH® bathroom sink is naturally hygienic and durable. This undermount bathroom porcelain sink offers a fresh white finish.This stunning white porcelain rectangular undermount sink is a beautiful, timeless addition to your home. This bathroom undermount sink features a classic, elegant design that will enhance the look of any bathroom and will free up counter space. This model is ideal for retrofitting, with a 1 3/4" drain opening designed for standard US and Canadian plumbing connections.