VECTOR. Multi-Task Sink Biscuit. E.L. Mustee introduces a new multi-task sink because Mustee is North America’s market leader in the design and production of high quality molded fiberglass utility, work and laundry sinks. Beyond exceptional functionality, the deep, semi-gloss solid and granite colors of Vector Multi-Task sinks are elegant enough to fit beautifully in the most luxurious home environments. So if you are looking for a quality-built sink that looks great and offers you more functionality than any other on the market today, then insist on a Vector Multi-Task sink.