I don't know the specific answer. There are two things to consider. First,
manufactures sometimes put different model numbers on items sold at the big
box stores like Sam's or Home Depot to foil the price-matching polices that
many retailers have. That way Macy's doesn't have to match Sam's price
because the model number doesn't match. The second consideration is that
retailers like Wal-Mart and Home Depot have items made to their
specifications to reduce the price. Sometime the differences are obvious
(fewer features, different materials used, and sometimes you can't tell.
Also, the big box stores sometimes will offer a special package deal that
includes extras that aren't normally packaged with products sold in other
stores.

Thanks for the reply. Anyone else know if there are any deficiencies in
the Sam's version?