jtpr wrote:

I have a Delta DC with a 4" intake. I see pictures of shops all the
time with metal ductwork running around the shop for use with similar
units, but when I look around the local HD I don't find anything that
seems to match up with the 4" hoses.

What is it I use for this?

Thanks,
Jim

Rockler sells an adapter to change from 4" fitting to PVC Sewer Pipe. See:

http://www.rockler.com/product.cfm?p...t%20collection

--
Jack Novak
Buffalo, NY - USA