Crown 31157K Tune Up Kit For Wayne Model HS Oil Burners (Old Style 2 Electrode Series) Includes 1 - Electrode assembly w/buss bar (21666-013) 1 - Electrode assembly w/buss bar (21667-013) 1 - Setting gauge (14200-002) 1 - Oil line 3/16” X 8” L (14452) 1 - Coupler w/end caps (100386) 1 - Elbow (13494) 1 - Buss bar support (13276) 1 - Instruction sheet For use on Blue Angel burner model HS Replaces Westwood S88-74, 31157,S88-76, 31157W, Wayne 31157 NOTE: This kit excludes the electrode bracket holder Wayne P/N: 21679, which is usually reused when servicing. If you would like a kit that includes the electrode holder please order our P/N: 31157KH