It's the older commercial one, not the one in the pic. That 30 makes a nice cut, and I'm using the single brush blade. That's my problem with the 30, it just takes to long to cut the lawn. I have never had the 40 on the machine, the previous owner had the 40 deck outside uncovered for who knows how long and the deck shell is beyond hope, belts are done, needs idler pulleys. I can make a new shell, buy belts, pulleys and so on but if the cut isn't up to the 30 I would rather not spend the time or money on it.