Karcher adapter similar to 69974730 connector for garden hose 19mm (ID). Printed using PETG 0.2mm. Good to apply teflon tape on the both sides (thread, hose) and elastic band in the empty space under the thread (like the original).
I've used it as a intake for 29972110 but it could be useful also for other stuff around Karcher garden pumps like 16453570.
The author marked this model as their own original creation.