Features: Equipped with a W21.8x1/14inch thread, the pressure regulator is universally applicable and fit most common gas bottles. Thanks to the workmanship make of brass and the solid construction. The bottle pressure regulator is extremely sturdy, and can withstands the highest loads. The pressure regulator is perfectly suited for the removal of compressing technical gases and indispensable in all inert gas welding processes. Products testing, sample welding, test cutting on site - convince yourself of our high quality. Specifications: Material: Brass Application: Argon, Carbon Dioxide, inert gas, mixed gas Bottle connectors: W21.8x1/14in Hose nozzle: 6.3mm High pressures gauges: 0-400 bar, red marking at 300 bar Temperature: -20 to 60℃ Size: About. 20x20x7cm/7.87x7.87x2.76in Package Includes: 1pc Argon Gas Meter note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.