Electrolux Central Vac Hose fits all Electrolux central vacs that use metal wands. This hose has an adaptor that allows it to be used on central vac valves that need two prongs or can be changed for to use a cord that plugs into a electrical outlet. To use the two prongs. Unscrew the screw on top of the two prong jack. Spin the jack around and re-tighten the screw. 30 foot long hose made by Hayden to fit Electrolux central vacs.