If you can't find the proper adapter, you can make your own by heating up PVC


Yep, I saw that too. But my issue is at the vac itself: it's a female connection with 2.25" (inner) diameter and no outer diameter (i.e. it's flush to the surface); and the 20ft hose I want to buy is 2.5" diameter (equal to: http://www.homedepot.com/p/RIDGID-2-...522/203235220).

Not sure if there's a 2.5" I.D. female to 2.25" O.D. male adapter for sale out there, and not something that I can make with any practicality. Or maybe someone's done this already and knows I'm wrong about some detail here?