I haven't looked at the one's at Sams Club as I am not A member but you
should be able to find out at the manufacturers web site the model
numbers and if they are the same you should be good to go. would be
cautious of numbers that were "almost" the same though as they might be
pulling the trick that H.D. does with Lincoln welding machines. The
numbers are "almost" the same as the ones at the welding supply stores
but you can see they are built cheaper than the real pro models.
Sorry I didn't get back to you sooner but I am home only on my days
off. I live 85 miles from work so I stay in town on work days.

H.R.