I believe that this may be the only fitting that does not have the regular options for finish colours, specifically the red colour. I found it quite disappointing when I realized that these were not available when planning my loop, as it appears to be a standard option for every other product. I think 16mm tube is the most common choice, so having these in the regular colour options would be very practical for myself and probably many others.
I may just be misinformed and maybe there is a good reason for these not being available, but if not, I would really really appreciate if your team could take this into consideration. Thank you!