I just finished this as new 17 year old tank. These are government surplus units that have been stored for possible future use. This tank shows absolutely no signs of use. I removed the CGA - 347 valve , inspected the tank for any issues , then replaced it with an air gun specific valve and upgraded the gauge to a larger 2" unit that is much easier to read. Included is a 20" micro bore hose with female foster fittings at both ends. This tank is past it's "15 year service life " and therefore will not be filled by any commercial entity. You must have your own source for high pressure air and use at your own risks. I use these tanks myself as well as most of my friends. They are overbuilt for breathing air in tough environments. Selling for $180 shipped with tracking to the conus. Not interested in trades or offers at this time. Please deal by pm. Thanks for looking. Herb