Check out the Onieda Link mentioned previously. They competently design the ductwork and layout as a service that is part of the standard purchase price. They will sell ductwork as well. My entire 3hp system ductwork and all was about $2,000. I'm constitutionally cheap...but I sprung for the the 3hp cyclone and ductwork....it was one of the best and smartest moves I've made, in terms of efficieincy of cleanup and bag changes, actually providing the advertised cfm, and trouble free performance...mine has been running daily for 10 years. I've had many opportunities to curse most of my machines...the dust collector has escaped any epithets, it does its thing and stays out of my face. The only problem I had was with the remote starter. They have changed that product line. And 10 years out when I spoke to them about it, they apologized and basically replaced the 10 year old remote starter system for free. Try getting that service from Grizzly. The cheaper systems all come with vastly overstated cfm and hp and horsepower ratings. JIm I
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