10" 3 tooth blade - 20mm Arbor. Fits the following models: 225L*, 225LD*, 225R, 225RJ,232L*, 232R (Before 8/02), 235R, 240F, 240R, 250R, 252Rx, 343F, 345Fx and345Fxt
*Acceptable only when unit is equipped with J-Handle or Barrier Bar Kit and proper guard.