HerHusband wrote:


Any ideas where I can get a 1-1/2" hose to fit the saw, and an appropriate
adapter to connect to the 4"?

Don't bother.

Miter saws are better with a large hood and 4" port.

Look at the second item on this page:
http://www.ptreeusa.com/mitersawaccessories.htm

Attach the large hood to an OSB or blue foam wall, and you'll do much
better.