Agree-
The dimensions make me slightly unsure, however I agree with the previous post.
It is a coupling that you convert your Hoover into a blower by removing the paper dust bag, attaching it to the filling tube, hence attaching the hose and Bob's your uncle. This patent was more common amongst the Hoover Junior 1334 circa
1959. Also models that followed where the paper bag was fitted upside down. A bit of a mission to clean or change the bag though.
Regards
Adrian
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