What central vacuum bag fits my Montana?

[edb121212]

I have a 2007 Montana that has the original vacuum bag in it. There is no model # on the unit but I looked online and it is the typical model shown and has one hole to plug in the hose. The bag has no number on it but I have narrowed it down to needing a Y10 or Y11. I don't know if that's right or not but still don't know which would fit. Help please. I've been all over the internet trying to figure it out.

[topjimmy]

My last two Montana's 2012 and 2015 have had Intervac brand Vacuums and the Bags come in a pack of 3 0r 4 and they are cheap on Ebay,on my 2004 Montana I think it was a Dirt Devil vac

[BB_TX]

I would guess it is more or less a generic vacuum common to multiple brands. But you might also ask over on the Montana Owners Club (MOC) forum. There are members there with the same model year and should have the answer.