Furnace Gas Burner Thermocouples, Specially Designed for Universal Replacement. ;;Features:;; Stainless steel element construction for prolonged thermocouple life.; Each kit individually enclosed in plastic.; Universal adapter fittings included with each kit for replacing thermocouple in most types of pilot burners.; Visible instructions for quick, easy installation.; Available in a variety of 10-packs in desired thermocouple lengths.; Standard thermocouple 11 /32" double lead thread.