1/4" PILOT CONVERSION KIT. SPECIAL COMPRESSION NUT &;FERRULE. CONVERTS 1/4" PILOTS TO 3/16" TUBING.;USED FOR SERIES 1830 PILOTS. CONSISTS OF: 3/16" PILOT ;FERRULE, WHICH IS EXTRA LONG, # 40-047, AND PILOT NUT HAS ;THREADING TO FIT 1/4" PILOTS AND HAS 3/16" HOLE, # 10-218.;;SLEEVE PART #:951079