Empire MEGA LITE Basic Air Systems offer an affordable option to the player who wants to upgrade to a High Pressure Air system. These high quality air systems feature an aluminum regulator that provides steady performance and reliability. With a five-year retest cycle, these Empire Basic tanks will operate for many years of quality performance.Empire 68/4500 Compressed Air HPA Paintball Tank Features:* Proven regulator performance using Pure Energy Technology* 68 Cubic inches 4500 psi* Standard 800 psi output pressure* DOT approved cylinder* Limited manufacturer's warranty* Aircraft grade aluminum construction regulator* Fully serviceable regulator design* Five year retest cycle - Born Date stamped on neck of bottle is the date the tank was manufactured, NOT an expiration date.Ships EMPTY. Compressed Air Tank Must Be Filled Prior to Use.