Hose 12mm male to Poly pipe 19mm adaptor

This is a remix of another hose adaptor (actually sliced up and added to). I needed to connect a standard AU hose (12mm) to a 19mm ID poly gardening pipe.
Yes, they are only $4 at the hardware store but that's 25km away.
Printed in natural ABS at 50% fill.

Just add a rubber 'O' ring in the recess provided.