Used 500 gallon Pfaudler #9115 glass lined reactor , clamped top design. 60" diameter X 51" high straight side. Bottom: MFG# J034083. Internal rated 100/FV @ -20 to 450 degrees F. Conventional jacket rated 85/70 FV @ -20 to 350 degrees F. NB# 50153. Clamped top: MFG# J034083A. NB# 50152. Both top and bottom built 2000. Model RT-60-500-100-85. Equipped with crylock agitator, driven by a 7.5HP variable speed motor through a #4 RW drive. Has h-baffle, with RTD sensor and a stainless steel dip tube.(Note: Top head has nozzle and glass damage)