This Hynautic reservoir was removed by cutting the hoses, so there may be some dirt in the chamber. The pressure gauge is missing and the hole was not plugged. The aluminum tank shows corrosion but no signs of failure. The top and bottom plates are corroded, but should clean up. The tank is pressurized by a bicycle pump or other air pump thorough the valve on top. It has a 2 quart capacity and measure about 10" tall and 4 3/4" in diameter. List price is over $600.  We cannot warrant this reservoir but will accept returns if it is not as described or has been damaged in shipment. Free shipping in the continental US.