I’ve ordered them on AliExpress. Guessing by the partnumber, they look like Volkswagen’s part from the Asian market.

Installation takes 1 minute with your bare hands. Just pull the old ones over the edge with nozzles. They snap off easily. Initially, the knobs were in the lower position. I had to turn them up to 3/4 for my car.

An interesting find: the wipers and nozzles do not work if the hood lock is open.