Hi Ron,
The bottom grill is a Genesis 1100 LX. Deeper firebox, taller lid, 2 rows of flavorizers (13 total), and slightly different length and spacing on the burners. I want to say the grates are a different size too but don't quote me on it.
Compared to a standard Genesis 1000, the slats on the bottom (vs a wire rack) makes it an 1100 and the durawood (vs real wood) makes it an LX.
Yes Jeff it looked just like yours but it had wood in lieu of the plastic.
Thanks,
RonW.