2000 chevy impala power steering leak?

[gtrhodester]

I recently found out where my power steering was leaking on a 2000 chevy impala. Its coming from the power pressure return line. Now this line is doubled up and isnt just one line like im finding being sold on many sites. I have no idea if this is a high pressure line. Ill try to get a picture up so it can be seen. I was wondering if there is a way to find the part number to this or where i can find this part without too much trouble. In the maintenance book it does not have a part number for this part. Where in the world could i find this part. Thanks everyone for any help u can give me.
Not so sure if the right name for this line is the pressure return line or not. any suggestions and a way to find this item would be helpful. Part number would be very helpful. heres some pics of what it looks like http://easymoneyone.blogspot.com/2010/08/power-steering-pressure-line-pics.html