This 12 foot extension hose is unique in that you are still able to use the switch on your existing vacuum hose to turn on/off your central vacuum power unit. Simply plug the extension into the wall and your existing hose into the extension. Ideal for when outlets are in inconvienient places, or when your hose just isn't long enough.
This hose extension can be used with an electrical hose, provided that the wall end style is pigtail (electrical cord coming off the end), and not direct connect. To use your powerhead, simply plug in the electrical cord from your hose into the nearest outlet to the end of the hose extension.