5" Dust Collector to 4" Flex Duct

I don't use the Y that came with the dust collector since I use a cyclone separator, so I created this adapter. It has a shoulder in the fitting that rests on the inlet flange of the blower. It also does not go all the way down to the blower. I did this to allow sealant or foam strips to be placed to seal the adapter to the blower. Mine is rigidly installed so there is minimal chance of torquing the adapter, so I left all the print settings standard, printed vertically with no supports.