So far we only offer Standard Ground service(2-7 Days). oxygen gas regulator welding cutting torch pressure gauge fits victor brass. The seller is wennowww and is located in this country US. This handy oxygen regulator easily replaces the worn out regulator in your welding kit Inlet 0-4000 PSI Outlet pressure 0-100 PSI Inlet thread CGA 540 female 2 diameter gauges.