Made this because I could not find one that was the right size I needed.
This fits the small Shopvac hoses about 1.25" diameter and connects attachments from my Bissel bagless house vacuum about 1" diameter. Sizes are not exact because of my printer prints off a little bit so I had to compensate but its only about 1mm or so. It fits my vacuum and attachments nice and tight and got the job done.
3D Best PLA