the list # on mine is 80556 1.summit sells it for 831.56

Thanks Mike. I appreciate the offer but I think I'd better hold off for a bit and see if I can find a 2 circuit..at least until I get a better understanding of how to adjust the intermediate circuit on one of these...

So far, especially with this project, it's not been cost effective for me to wander to far from what I know....

Just bought an 1150 cfm, 2 circuit last night. Thanks OS and also to everyone who offered.

This thread can be deleted.