question about 12.7/7.6 fittings with 11/8 system

Hello,

I have a system that uses 11/8 fittings (5/16 inch ID), however, ever since you stopped shipping to America I can no longer find these fittings in the USA market.
I cannot find these (as well as their 90 degree variants) in the USA:
1761751747603.png
The closest I can find is this:
1761751415275.png
Has anybody tested these fittings with 11/8 EPDM tubing and tight hose clamps like these ones?
1761751529342.png


For use with this tube:
1761751597235.png
 
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