505 TOTAL GALLONS. BATCH SIZE IS RIGHT AT 500 GALLONS. 42"DIA X 83"SW + ~4"CONE BOTTOM- FULL DRAIN. NEW 3HP MOTOR AND GEARBOX. STAINLESS MIXER SHAFT WITH FOUR BLADES AND BUSHING. TWO BAFFLES. TWO ZONE SHELL JACKET, TOP AND BOTTOM, PRESSURE TESTED GOOD 3/22.