Equipment that uses gas swill need special pipes to connect it to the supply line. Some units already come with standard tubing and hookups but special kits are available to provide more flexibility in machine positioning.
Heavy kitchen appliances that come standard on legs often get put in their place and never moved again. This can be a detriment since regularly cleaning all sides of the machine help maintain efficiency. For this reason, many establishments purchase special wheels to put on their equipment so it can be easily moved for both cleaning and servicing.