- High-Quality Gas Diffusers and Nozzle Adaptors Replacement for Miller M-25 and M-40 MIG Guns Model 169-728 Diffuser threads into Nozzle Adaptor Model 169-729 This Model 169-728 Diffuser fits Series 000 Contact Tips Model 169-728 Diffuser iSealso called Tip Holder Available in 2 Pack, 5 Pack or Mixed.
- Select your option from the Model Menu.