Hi,

Here is a link to the parts available for a Dyson DC08 (select your particular variant, although the hose is the same for all variants)

http://shop.dyson.com.au/spare-parts?ran...

Here is the part number for the hose, 905377-01 (if this is the hose that you mean).

If it is what you mean, then if you search online, using just the part number in the search term, you will get a list of suppliers, which may suit you better as to the cost of the part.

Here is an image of what I mean.

(click on image to enlarge for better viewing)

Hopefully this is of some help.