Condensate connection too thin!

The absence of the non-return valve has been already mentioned. Worse is that the condensate drain is so thin that it is clearly too thin for connecting hose (drain my dryer). The outer diameter (why is that nowhere?) Is approximately 7 mm, but I would need about 10 mm. Will now try to bridge with sealing tape, if it is not good works the part goes back.
It would also be much better if the condensate drain would be offset by 90 °.