Steel 80 CU FT OXYGEN CAPACITY - Mid-size cylinder delivers extended run time for oxy-acetylene welding and cutting operations, medical oxygen use, and industrial applications. Balances generous capacity with manageable portability for professional welders, shops, and healthcare facilities. CGA540 OXYGEN VALVE - Oxygen-specific CGA540 connection with 3/4" NGT inlet thread ensures safe, proper fitment. Compatible with oxygen regulators and equipment only. Medical oxygen requires doctor's prescription. Service pressure 2015 PSI, test pressure 3365 PSI. NOT compatible with other gases HEAVY-DUTY STEEL CONSTRUCTION - Durable seamless steel cylinder with thick walls rated for 2015 PSI service pressure. Green oxygen-grade painted finish with rust inhibitor for long-lasting durability. Includes steel cap and collar for valve protection. 7" diameter x 31" height, 47 lb tare weight. Letter Q industry designation. VERSATILE OXYGEN APPLICATIONS - Ideal for oxy-acetylene welding and cutting torch work, metal fabrication shops, medical oxygen therapy, industrial processes. Popular mid-size capacity for professional welders needing extended work time without the bulk of larger cylinders. Compatible with Victor, Harris, Miller, and ESAB equipment DOT APPROVED - SHIPS EMPTY - Meets DOT specifications for compressed oxygen cylinders. Ships empty per shipping regulations - fill at your local gas supplier. Oxygen cylinders require oxygen-clean equipment (no oil or grease). Medical oxygen requires valid prescription. Green finish shade may vary. High-quality 80 cu ft steel oxygen cylinder. Includes steel cap. Heavy-duty construction with thick walls and a durable painted finish. The tank has great low-temperature delivery. Guaranteed date of manufacture or hydro test within 12 months. DOT approved. Please be sure to use a regulator that fits the cylinder valve, and that is correct for your application of use. Product note: compressed gas cylinders can be dangerous if used improperly. Please be careful, know the correct procedures for use, and exercise caution when connecting and using any compressed gas device. All cylinders ship empty. Please consult your local compressed gas supplier for filling needs. Cylinder color green varies in shade.