All AstroVac vacuum units are standard compatible with a hose with electronic speed control as of January 2013. Do you have an AstroVac vacuum unit that was delivered earlier? If so, please contact the importer to determine whether your vacuum unit is compatible with a hose with electronic speed control. This is often easy to find out from the serial number. Want to be sure? Then call +3176 - 5781581 and keep your serial number at hand.