New steel 20 cu ft nitrogen cylinder includes a CGA580 valve. The perfect size smaller tank is for nitrogen applications including Cold Brew Nitro Coffee, Beer gas/G-mix, and argon for wine, as well as many other uses. Great for serving a fine stout, or avoiding over-carbonation. Premium Construction High-strength steel Thick tank walls Tough painted surface New CGA580 valve for inert gas Specifications, Testing, and Approvals 5.125″ in diameter x 18″ in height (with valve) Consistent TARE weight between cylinders 2015 PSI service / 3000 PSI test pressure Manufactured or hydro tested within 12 months 10-year testing period DOT-approved Ships empty