WeldingCity 5-pk Gas Diffusers/Adapter Holders 169-729 169729 Miller Hobart MIG Welding Guns Premium quality Miller Hobart style MIG gas diffuser 169-729 169729 Fits Millermatic M-25/M-40 MIG welding guns You get Five (5) gas diffusers/adapter holders 169-729 at this price We use U.S. Postal Service (USPS) as main carrier. Please provide a USPS deliverable address.