Reliable flow performance for routine MIG / TIG welding applications. Features a triple-scale repositionable flow tube for easy reading of different gases. 0-60 SCFH flow (5-28 lpm) Argon, Argon / CO2. 0-50 SCFH flow (0-24 lpm) CO2. 0-160 SCFH flow (0-78 lpm) Helium. 50 PSIG (3 bar) preset outlet.