I had barely any information regarding my central vac system, and he was able to get me the exact right part I needed to repair my system.
4-Wire, 30' Electric Hose
This hose can power and electric powerbrush and the vacuum with a 3-way swiitch on the handle. It comes with either an 8' pigtail cord or direct-connect plug depending on your valve style. It has an Ergonomic grip for added comfort and a strain-relief handle for added durability.