On 3/9/2010 10:09 PM, "John Allen" <john at pcsupportsolutions.com wrote: > Hi Mark - do you have a source or part number for the fan? I seem to remember > that the manuals says 35 or 37 cfm. > Without a pressure drop, cfm is is not sufficient to find an adequate fan. I can put a 5370A/B on a flow bench, but it won't happen soon. -ch