Genuine VICTOR Full Brass Flowmeter with High-Impact Lexan Flowtube. CGA-580 Inlet Connection for Argon, Argon/CO2 mixtureSÜAnd Helium. Designed for MIG and TIG Processes. Maximum inlet pressure: 3000 psi. Precision needle valve. One-piece flow tube cover. Controlled Flow: 5 - 50 SCFH Argon / 20 - 150 SCFH Helium / 5 - 40 SCFH Carbon Dioxide (20% duty cycle) - Temperature: Operating -18 Weldas°C - 49 Weldas°C (0 Weldas°F - 120 Weldas°F) / Storage -29 Weldas°C - 60 Weldas°C (-20 Weldas°F - 140 Weldas°F) Also available with 5 feet or 10 feet hose. Select your option from the menu. The GRF400 series cylinder flow meter regulator iSÜA compact, economical flowmeter regulator engineered for light duty applications. Designed for Argon, Helium, and Carbon Dioxide (20% duty cycle with CO2).