The main difference between an utility sink and other types of sinks such as laundry sink, kitchen sink and bathroom sink is its size, functionality and durability. While utility sinks can come in a range of sizes, they tend to have more width & depth than a laundry sink. The utility sink, as the name suggests, can be used for multiple types of washing & cleaning operations. While you would use the laundry sink to just pre-wash dirty clothes, you can use a utility sink to wash almost anything that is messy & grimy. Utility sinks are often used to clean or wash grimy hands, muddy shoes, garden equipment, garage tools, etc. You can even give your pets a bath in a utility sink.