pic. code             description n nB 410293                PEL 20-21 head Ø 11.5 mm - dim. L = 44 mm, coil Ø 15,5 mm                  410340      PEL 22S-24ST head Ø 14 mm - dim. L = 44 mm, coil Ø 14 mm n n410344               PEL 23S head Ø 18 mm - thread M22 - L = 55 mm, thermocouple M9x1 531936              PEL 23S head Ø 18 mm - thread M22 - L = 55 mm, thermocouple M10x1