A 1-Bowl Underbar Sink is a great addition to your restaurant, commercial bar or pub. A single sink that takes up very little space designed to fit under commercial height countertops or bars provides you with a glassware wash or dump location. They can also be used as hand sinks. 1 bowl underbar sinks are constructed from stainless steel for durability and corrosion-resistance. Some models have a single or dual drainboard incorporated into the unit, providing even more work space.