Blower, 400 Internal (CTWH30,CTWH36,IH4227,AND P,
          PW,PWC,PI HOODS)
          APPROVED ONLY IN CASES WHERE MAKE UP AIR
          RESTRICTIONS LIMIT BLOWER SIZE. CAPTURE
          AND PERFORMANCE MAY BE REDUCED
   NOTE:  Use Regardless of Serial Number on All
          Models Except For CTWH30
   CTW30  Use Starting With Serial #14502412
          Prior to Serial #14502412 See 801643
   NOTE:  For Hoods Built Prior to 4/1/2013 An
          Adaptor Plate 814424,814425,814426,
          814781 May Be Needed.
   NOTE:  Contact distributor for current pricing.