Is there another source for something like MFH fuel line?

I bought the trumpet/intake kit for my Lotus 79 and it came with some nice fuel tube (1:24). I am having a hard time finding this product by itself. Is there another source for something like this? What would it be called? I have searched endlessly for .4mm and similar size silicone tube, rubber tube, etc. No results.

this is what I am looking for. I believe theirs is .4mm for 1/24 scale

http://www.hiroboy.com/catalog/image/mfh-p958.jpg

Dont know bout yellow but silicon fishing line is perfect for this job.go ebay and search silincon tubing 0.4mm or silicone fishing line,gos right down to about 0.2mm and over 0.4mm should think to bout 2mm?

I have bought clear which is more whitish and black thats more grey than black but yes its same as mfh stuff.

search yellow silicone tubing?
:)

Go to craft stores and look at what they have in the section with all the beads.