You can also use it with any Electrolux that has a pigtail motor-end connection. Just affix a chrome connector over the plastic end and you're ready to go!
This hose will work with any Electrolux upright that supports an electrical connection for powered accessories. The Discovery series (II, III and Plus) do not unless they are retrofitted with an adapter kit.
I've looked at several pictures of hoses of different upright models on ebay and other sites and most of them show a lip at the very end of the connector that mine doesn't have, that's why I asked my question.