Smith's single stage flow meter regulator provides exceptional value and compact design for precise shield gas regulation in MIG and TIG welding applications. The shatter resistant polycarbonate flow tube features a triple scale for Argon, Helium and Argon/CO2 processes and includes a packless O-ring flow tube seal which reduces maintenance. This flow meter regulator also has a built in rupture disc to reduce the possibility of flow tube damage due to a high pressure inlet surge. This is also backed by Smith's 3 year limited warranty. Package of 1