The Vacuum-Central/Built-In (Wholesale) industry involves the wholesale distribution of central vacuum systems and built-in vacuum systems. These systems are designed to provide a convenient and efficient way to clean homes and commercial spaces. Central vacuum systems are typically installed in a central location within a building and are connected to a network of pipes that run throughout the building. Built-in vacuum systems, on the other hand, are installed directly into the walls of a building and are typically used in residential settings. The Vacuum-Central/Built-In (Wholesale) industry is responsible for supplying a range of products to retailers and contractors. These products include central vacuum power units, hoses, attachments, and accessories. The industry also provides installation services and technical support to its customers.