Two types of hose attachments for your shop vac. Fits the standard 2 1/2 inch hoses on most shop vacs. One is a male-female attachment the other is male-male. I printed the male-male attachment with circular supports. These fit my Rigid 16 gallon model so it should fit yours.
Based on a modified version of FollyMaker's scad file (thing 1246651).
2.25Male_to_2.25Female_Hose_Attachment.stl | 47.0KB | |
2.5in_Hose_Attachment.stl | 47.0KB |