Trying to choose between the Grizzly G0703 1.5hp cyclone (775cfm @1.08) and a G0562Z 3hp double canister DC (2320 cfm, 16.9" static). When i go up to their store I'm going to have to see if I can shorten the G0443 cyclone (1025cfm @ 2.6") enough to fit under my 82" between joist ceiling. The duct work will run about 14' straight shot to end, 2 wye's branching off the main along the way, 6 or 7" to start depending on which one I get , tapering down 5" in the middle, 4" drops. I might use 2 at a time on the same machine. Don't have any big boy tools yet, I think the 20" I've been drueling over would be my worst tool. I don't do much woodworking yet, but I can already tell how much dust I'm breathing with just a day project. The double canister model has a 1um rated filter, the cyclone has a .2-2 (so I assume tha means 2) um filter. I'm guessing that it would be easier to get a sub-micron/HEPA to fit on the G0562Z canister than it would be the cyclone. Beyond that it comes down to cfm and filter life. How much do I need to use it before the filter life outweighs cfm? My shopvac just isn't gutting it for my 2" tools, let alone when I get a 4" one.
http://www.grizzly.com/products/3HP-...llector/G0562Z
http://www.grizzly.com/products/Cycl...-2-Stage/G0703