[DesertRatTom]

This is the one I use. It's from Rockler. Their dustport line all fits together well. Other brands don't seem to manage to be interchangable. Stick with one brand. Even my offbrand hose fits the 2.5 inch port just fine. Do put a 2.5 inch blast gate in line so you aren't using both ports at the same time.

 

[DesertRatTom]

It just occurred to me that i probably ought to add a blast gate to the 4 inch input port so I get maximum air flow from the 2.5 inch line. I also have the Shark Guard. I have a tiny sawdust leak from the sides, but it is maybe 1 percent of what that saw used to spit out.