It's a Char-Griller, I got it at Tractor Supply- it's been a good one!
...but as far as smokers go, this old gas oven that I use is the best! I just put a fire in the bottom, and with the insulation all the way around the oven except for in the bottom, it will cook a boston butt way quicker than the Char-Griller. I can only get the temperature up to about 175 in the Char-Griller if I only use the offset firebox.
An old gas stove is ready to use for a smoker. I have another one that I made out of an electric range. With the electric stove you have to pull all the wiring and stuff out, and get in there some kind of way and pull all the insulation out from under the oven, leaving it all around the sides and top. I bent a coat hanger and pulled it out through a hole I found somewhere. You need to keep both bottoms though, with the empty space in between. Then you just drill a bunch of holes down through the bottom of the oven without going through the second bottom, and more from the bottom without going all the way through into the oven itself- that way the smoke can get through, but if the holes are not directly in line, the flames can't get through and char your meat. And you can drill away around the edges of the oven, it doesn't matter if the holes go all the way through. It ain't much to look at, but they make a hell of a smoker.