DIAMETER (INCHES) / MODEL NUMBER 

64.2"                        233

63.4"                        243

67.3" (WIDE BLADE)   *163 / 263

67.3"                       *167 / 267

70.9"                       *183 / 283

74.8"                        293

* The digit "1" is LEFT rotation

  The digit "2" is RIGHT rotation

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*MORE THAN 3 BLADES SLIGHTLY INCREASES OVERALL DIAMETER.​