List of replacement impellers for HF dust collector?

[Craig Starnes]

I just did a google search and a guy on the Thien forum says that the Grizzly 12 3/4 by 3 1/2 impeller # P1028Z2010 works.

On another forum a guy says that his cfm at the end of a 41 ft run went from 325 cfm to 640cfm. He was exhausting outside so no filter to add resistance.

Good luck

Did the Grizzly have to be machined to fit the HF shaft? The only other impeller I saw referenced required the hole to be opened up a little...but I don't remember if it was that Grizzly or not.

Thanks

EDIT:

After some more searching and reading, it looks like the Grizzly impeller was too heavy for the HF motor (even though it is for a 1-1/2hp machine?), and the shaft diameter wasn't exactly correct. So, we're still at only the Rikon impeller so far.