[kitcarbp]

Ditto the above info.

FYI- Rule of thumb SPAL gave me, is that the running current of a fan like these are typically 10 amps/1,000 cfm of rating. This is one way to debunk many aftermarket fan claims. A manufacturer's high cfm claim without the high current draw to match is suspect and not to be believed. Always try to get the fan performance curve which shows evidence of fan's performance in cfm's versus inlet restriction (look at SPALs website, they share it all).