The ultimate in underbar sinks is a 4 bowl model. If you have the space and a need to improve glass washing work flow, consider a 4 bowl underbar sink. These sinks are heavy duty and are designed to be installed under commercial height counters and bars. Some models have drainboards to allow glasses to dry and other models have built-in ice bins for easy access to ice for your beverages. A versatile 4 bowl underbar sink might be a great addition to your busy restaurant or bar.