DeWalt Portable Shop Vacuum Attachments and Miele Adaptor

My little DeWalt vacuum gets quite a bit of use and here's a few attachment/adaptors. The Miele adaptor fits my hose extender as does the VacNozzelEnd file. The little shop vac hose end fits the VacNozzelAttachment file but isn't a great fit for the hose extender. Seems there's slight differences in ends!