Product Description Value not found From the Manufacturer American Standard Rondalyn vitreous china countertop sink Rondalyn, bone 0491.019.021. The American Standard Rondalyn vitreous china countertop sink is a self-rimming lavatory with front overflow. It includes tapered edges for style and is supplied with a cut-out template. It is designed with faucet holes drilled on 4-Inch centers. The nominal dimensions are 19-1/8-Inch diameter; bowl sizes are 15-Inch wide by 12-1/8-Inch front-to-back by 5-3/4-Inch deep. About American Standard brands - great performance and great looks meet in our complete line of fixtures and faucets for bath and kitchen. Performance and reliability. Coordinated collections. Ingenious features. American Standard is style that works better everyday.