Arg, I'm sorry. Send me an email and I will send you the right couplers.
Also, just so it's known, the reason we don't offer the intake anymore is for this specific reason: they kept sending us the wrong tubing, and they take about 2 weeks to get. So when they do send us the wrong part, it takes us another couple weeks to fix it.
I'm sure someone with more money then me that could keep the correct parts in stock, could gain from this. I just don't have enough working capital to keep this tubing on hand. I am more than happy to turn over the source of the parts and the technical drawings for the intake tubing.