Features: - Economy style flow meter regulator. - Single stage piston design. - Preset pressure at 3.5bar/50psig. - Machined brass body. - Combination of regulator and flow meter as one unit. - Polycarbonate flow tube and outer cover are impact resistant for maximum durability. - Compact lightweight construction. - Designed for MIG & TIG applications and provide accurate regulator of gas flow. - Dual scale gauge with unbreakable polycarbonate lens for durability. - Pressure gauge UL approved. - Weight:709g. -Material:copper