Kit,Lock UL Approved
   424    Use Prior to Serial #3100000
          From #3100000 to #3227000 See 7001575
          Starting With #3227000 See 7030802
  424FS   Use Prior to Serial #3100000
          From #3100000 to #3227000 See 7001575
          Starting With #3227000 See 7040171
   427    Use Regardless of Serial Number
   427R   Use Regardless of Serial Number
   430    Use Regardless of Serial Number
   WS30   Use Regardless of Serial Number
   NOTE:  Contact distributor for current pricing.