That is the bender I have (the one on e-bay) I know that business sold and moved around a couple of times. Maybe it is one of the "old" guys.
I can bend the 1" square tube, but when you went bigger you needed their #2 I think it was, that had the ratchet type deal leverage multiplier like was shown earlier. The U part was bigger then the original.
While it may look identical, I would be careful that what you are seeing on e-bay is not the #2 with the bigger U piece and the dies are sized accordingly and would not work in the HF one.
Having to jog my memory some here, but these guys are the one's mine is from.
Shop Outfitters Metal Bending Tools Tube and Pipe Bending
Good stuff.