WeldingCity MIG Welding Gun Kit .045" Tip-Nozzle-Diffuser-Liner for Miller M-25/M-40 Hobart Torch M38L MIG welding gun accessory kit (0.045") for Miller Millermatic M series or Hobart H Series MIG gun. Fits Miller Millermatic M-25/M-40 and Hobart H MIG welding gun torch. 2 gas nozzles 200-258 (1/2"), 10 contact tips 00-069 (0.045"), 2 gas diffusers 169-728, 2 nozzle adapters 169-729 and 15 liner 194-012 (0.045"). Please see all listed pictures to check your MIG gun details for part compatibility. Strong technical support with experienced customer service to address buyer's any question.