40 cu ft Steel Nitrogen Tank This reliable new 40 cubic foot steel nitrogen cylinder is preinstalled with a standard CGA580 valve boasting heavy-duty brass construction and finished off with a tough, rust-resistant cranberry color painted finish. The perfectly durable and most affordable nitrogen cylinder, great for beverage, industrial, welding, and filling tires. DOT, ISO/UN, and TC approved. Fresh hydro test within 12 months of shipment! Cylinder and valve are compatible with all inert gases - nitrogen, argon, helium, and neon. Note: due to manufacturing variations, cylinder height may vary by as much as +/- several inches. All cylinders ship empty. Steel Nitrogen Cylinder Specifications CGA580 installed Capacity: 40 cu ft. / 1133 l Internal Volume: 476 cu in / 7.8 l Water Capacity: 17.2 lb. / 7.8 kg Tare Weight 29 lbs. Applications: Beverage, welding, industrial, tire inflation Rust inhibitor paint finish DOT- and TC-approved Certified within 12 months Steel Cylinder Dimensions: 7" Diameter x 18" Height (with valve)* Service Pressure: 2524 PSI / 174 Bar Test Pressure: 3365 PSI / 232 Bar Ships empty *Note: due to differences with manufacturers, cylinder heights may vary by +/- several inches.Thank you for your support!Gas Cylinder Source