my understanding is the A and A-1 are the same A-2 and A-3 are different. here are the power curves for the impellers
http://www.berkeleyjet.com/Instructions/impeller_info.pdf
Type: Posts; User: MMcNay
my understanding is the A and A-1 are the same A-2 and A-3 are different. here are the power curves for the impellers
http://www.berkeleyjet.com/Instructions/impeller_info.pdf