1. Scope of Application: Suitable for welding, electronic, and similar applications. 2. High-quality: Made of Zinc Alloy and ABS materials, featuring strong sealing, safe and reliable performance. 3. Holster protection: The head includes a holster to protect the meter over extended use. 4. Clear scale: Dial scale is clear and precise, enabling convenient operation. 5. Compact structure: Full copper air inlet and outlet connectors, resistant to discoloration and rust. Name: Oxygen Regulator Model Number: Pressure Reducer Tracheal Interface Diameter: Approx. 8mm / 0.3inch Applicable Gas: Acetylene / Oxygen Color: Green Material: Zinc Alloy + ABS Package Contents: 1 x Oxygen Regulator Note: Light and display differences may cause slight variations in color between the image and actual item. Measurement error allowance is +/- 1-3cm.