Given the tight spacing in my case, I needed some type of elbows to avoid big loops in the hoses. Looking at the hardware store I found that 16 mm PVC conduit fittings matched precicely with the metric clearflex I'm using. (12 x 16 mm.)
These pipes are for electic intalations and not certified for high pressure water use, but are more than enough what I need. Since clearflex is a type of PVC, the pipe adhesive worked great bonding both materials.
The curves are very soft, cause are designed to make the lowest drag possible while sliding cables, also perfect for a high flow 13mm ID circuit!
Some may dislike the color, but that can be solved with paint

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