This works great as a friction fit adapter, but with one important caveat: you'll need to file down any protruding burrs with a Dremel and file. Once these combs are cut the adapter works great and sucks great with my other vacuum hose attachments. After being served it doesn't look that pretty but what's the difference. It works great. I'm giving it 3 stars because 1) you have to trim the combs to make it fit 2) it's such an expensive adapter that I have to buy and manually modify it to make it a universal adapter.
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