The magic word is bulk tube.
I think this is what you are looking for:
95005-3000150M
It's one meter and costs around 9 Euros. Inner diameter is 3 mm, outer around 6.5 mm (the correct clip is the B6.5 type).
You need two pieces, 140 and 160 mm.

Most of the air tube is 95005-5500120M (inner dia 5.3 mm) except for one 30 mm piece which should be from 95005-3500120M.