Heavy Duty Plastic Oxygen Cylinder Wrench – CGA870 Valve Key for D & E Medical Oxygen Tanks, Lightweight Portable Tank Adjustment Tool (Pack of 4)

["Compatible with CGA870 Oxygen Valves - Designed to fit standard CGA870 post valves used on D and E size medical oxygen cylinders.","Easy Oxygen Tank Operation - Helps safely open and close oxygen cylinder valves with minimal effort and smooth control.","Durable Heavy-Duty Plastic Construction - Made from strong, long-lasting plastic designed for repeated use in home or clinical environments.","Lightweight & Portable Design - Compact and easy to carry—ideal for homecare, travel, emergency kits, and medical facilities.","Ergonomic & Easy to Use - Designed for comfortable grip and simple operation to reduce strain on hands during use.","Medical & Homecare Essential Tool - Suitable for hospitals, nursing homes, long-term care facilities, and personal oxygen therapy users."]