Empire 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 compressed air tanks must be subjected to a standard hydro-static test once every 5 years. No tank may be filled once 15 years have passed since it was manufactured. Always have a certified technician inspect your tank before filling it, and do not attempt to service your tank unless you are certified to do so.