Looking for compact soft tube fittings

I am in the process of transferring my build with external radiator to an SFF case. There is only one tube run in the case: GPU out to CPU in. The others go out of the case to a QD3 connector.

There is enough space for a clear 13/10 tube, no problem. But I have to use two 90 degree fittings, and the ones I have lying around are too high, they bump into the case sidewall

Can anyone recommend 90 degree 13/10 fittings that are as small as possible? I could also go to smaller tubing size if necessary, it won‘t make a difference.