I broke one of the garden hose adapters so I decided to design my own and print one.
Garden Hose Thread: 3/4" [0.75-11.5 NHR]
Female thread obtained from: https://www.thingiverse.com/thing:2563403
ABS Print came out perfect. Using 4 perimeter/shells really made it stronger.
UPDATE: I made some minor adjustments. Please download the new .stl file
HW_3-4in_GardenHoseAdapter_FINAL.stl | 6.5MB |