Features Innovative 90-Degree Design: No tools required! Easily connect your large propane-tank upside down to your bottle with a secure ON/OFF control valves and hand-wheel grip for effortless tightening. Safe Structure: Corrosion-resistant solid-brass provides a better sealing effect. Additionally, the built-in safety features effectively prevent the danger of overfilling the gas cylinder. Glow-in-the-Dark Gauge: The upgraded luminous pointer ensures you always know how much-propane remains, even in the dark. Safe & Accurate-Refills: The built-in gauge shows real-time propane-levels, helping you refills precisely and avoid overfilling. Versatile Use: Ideal for camping stove, BBQ grills, propane-heaters, and more. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Brass Package List: 1x Propane-Refills Elbow Adapter