... (welding flowmeter, welding accessory) OR-01 Argon flowmeter (welding flowmeter, welding accessory)1. Designed for MIG ... Forged brass body and bonnet for maximum strength4. Calibrated for argon, helium and carbon dioxide gases5. Flowmeter is backpressure compensated to ... External safety pressure relief design. 8. Sintered bronze inlet filter. Argon flow meter (welding flow meter, welding accessory)