Made from high quality brass and steel, this unit is built to be durable and practical for regular use. Key features - Output adjustable from 0 to 25 L/min; flow is indicated by a ball moving up and down in the tube for easy reading. - CFH scales for both argon and CO2 are shown on the pipe, providing clear flow verification. - Reliable and accurate performance in shielding gas delivery applications. Benefits - Simple, precise control of shielding gas flow to support stable welding, brazing, or calibration tasks. - Durable construction suited to workshop environments. - Clear visual indicators reduce setup time and misreadings. 2-3 common use scenarios - TIG welding with argon shielding: set the flow within the suitable range for a clean weld. - MAG/MIG welding using CO2 shielding: adjust flow to match material and welding speed. - Laboratory or calibration setup requiring controlled delivery of argon or CO2. This unit maintains a consistent, readable, and trustworthy performance for gas flow control without unnecessary add-ons.