HF Filter Ring Inlet change

[Zane Harris]

On the HF dust collector, the outlet of the impeller housing is about 6x4 inches (I think), then gets choked down to a 5 inch round house. Not a huge choke, but a choke none the less. On an Australian woodwork forum I read about someone that replaced the round hose with a rigid adapter that matched the dimensions of the outlet on the impeller housing.
https://www.woodworkforums.com/f200/generic-2hp-dc-171247/2#post1659193
Has anyone on here tried that, and if so, HOW, and what did you think of the end results?

TIA

[Zane Harris]

Try this link instead.
https://www.woodworkforums.com/f200/generic-2hp-dc-171247/2#post1659193

[Bobby Robbinett]

I would t try it unless you do the impeller upgrade. The 2HP Harbor Freight unit can’t support a 6” trunk line. At least that is what I was told. 5” would be perfect

[Zane Harris]

I have replaced the impeller with a 12 inch impeller (I think it was a Rikon). I've also opened up the intake to the impeller to a full 6 inch.