I had a Velocity 100. On the back of the iron below the plug:
http://www.vacuum-direct.com/reliabl...home-iron.aspx
That was the filter. Couldn't find any more
You had the V50:
https://www.bedbathandbeyond.com/sto...ron/1018076268
From this ad, it doesn't look like it has a filter from the description.