Gardena Profi Adapter to Compressor / Car Valve

I built this adapter to blow out the water of my garden underground water system. It is created for the premium / profi system (not the regular, smaller system). The O-ring has to be taken from an original adapter. Should be printed in PETG. Tested with my portable Xiaomi compressor and it worked for me! The water came out of the sprinklers, so hopefully no freezing. Have fun, feedback appretiated!