Used 8,000 gallon carbon steel rubber lined tank, 12' diameter x 9' straight side, flat bottom, dome top,top and side manways. MAWP 12" H2O @ 194 F. Note: Tanks is rubber lined and the liner is no longer good, the rubber liner number is 1008. Wall thickness 1/4", Head thickness 5/16". ( 2 Available ) NOTE: THE WHITE TANK IS SOLD.