... the performance. spark plug,flame lighter,ceramics igniter Material For Choice : 1) Ceramic Insulator Body: 95% Alumina, Steatite with glazed or ... no glazed layer . 2) Electrode Pin/Rod: OCR25, OCR27, SUS304, Ni80Cr20, ... 5)Terminals: Various quick connect terminals are available ZH-067A ceramic electrode for water heater,BBQ,boiler