Karcher couplings for cyclone filter

I wanted to attach a cyclone filter
to my Karcher WD6 P Premium vacuum. So I made some couplings for Karcher's vacuum hose system. IPT files are included so you can remix it for your own purpose.

The Picture is with the 3d printed cyclone filter by Andrey Nesterov:
https://www.thingiverse.com/thing:2829268

UN BIN was bought here:
https://www.bol.com/nl/p/30l-dekselvat-spanring-blauw-un/9200000074999117/