For sale: 5- 4500 psi storage cylinders. May have more if last person to call does not show today. Born on date was 2003 and tanks were used until 2016 or 2017. They will need new hydro's. Last hydro was in 2014 or 2015. Not full but have approx. 1000-2000 psi of air. Also have several 3600 psi tanks. Still in hydro. This is a cash sale at time of pickup ( no checks Paypal etc.) St. Charles County MO area. $350 each.