Home / Welder Replacement Parts / Mig Consumables / Profax 54A DiffuserProfax 54A Diffuser$1.95 Profax 54A Diffuser quantity — OR — Add to cart Categories: Mig Consumables, Welder Replacement Parts Description Description1-1/4″ Long1/4-28 Tip Thread3/8-24 Gooseneck ThreadFits Lincoln machines with Magnum 250L gun, Profax 250 & 400 amp guns, and many others that use a 3/8-24 conductor tubeProfax 14 Series Contact TipProfax 23-50 NozzleProfax 23-62 NozzleProfax 34A InsulatorRelated products Compact 250 Amp Mig Gun – Lincoln Power Mig Direct $216.17 – $234.48 Select options Profax 21-50 Nozzle $5.42 Add to cart KP2742-1-62R Magnum Pro Nozzle $15.43 Add to cart Compact 250 Amp Mig Gun – Lincoln Direct $216.17 – $234.48 Select options