I have a Jet DC blower with a 2hp motor. I believe this to be the DC1200. (note it is a 2hp, NOT the 1.5 hp).
And I found an older blower available, that has a 14" impeller (which I believe is larger dia than what I have now) - but - its also rated at 2hp (although a much older motor, and perhaps not all hp ratings are created equal).
Im trying to get some more info on the motor. 14" sounds a little large for a 2hp motor (but might be standard on a 3hp motor). The question I need to figure out is, is it really an upgrade over the current 2hp Jet blower (which I 'thought' only had a 12" impeller but I havent actually taken it apart and measured it).