A friend of mine runs a cleaning service and uses Kärcher machines daily. In December 2025, the adapter for the water hose leading to the spray nozzle cracked, forcing him to buy an OEM replacement for 65 €. After talking about it, we realized this part was simple enough to redesign and 3D print as an alternative. That’s how this adapter came to life — as a practical, affordable repair solution.

The 3d printing community has given me a lot. From the joy of this hobby to the necessary solutions in terms of their designs. this is my share that I want to give back to the community.