500 gallon vertical glass lined tank. 48" diameter x 60" straight side. Welded dished heads. Manufactured by Ceramic Coating, type VS48-500-100, Serial# 6.43392, NB# 1604, built 1997, with glass 2001. ASME code stamped for 100 psi/FV @ 450 deg. F. Openings: Top - 18" manway with hinged cover, 1-8", 3-4"; Bottom - 1-4". Mounting lugs. Lifting eyes.