Also try this site
http://www.spal-usa.com/html/dampframe.htm
Click download next to the 30100846 part number and it will show you the tech specs for this fan. It will also show that pn#30100846 is the actual part number and that 2va06-ap6-37a is the type of fan. It will also give you dimensions for the unit and a cfm rating. every thing you should need to tell you if it will fit.
Just trying to help you out, and help you save some money!!