Vacuum Hose adapter 12mm to 16mm

Since i couldn't find a 16mm OD hose for the vacuum nose part i purchased a 12mm one and designed a quick-dirty fix adapter for the exact purpose. It is firmly tight on the hose and when the vacuum piece on the dremel is screwed the bond is getting as tight as it can be. I have printed it with .2 layer height x 4 pieces for the 2 ends of both hoses.

Suited my need perfectely without printing the whole vacuum piece from scratch!!!

Hope It can fit someone's needs!!