Used 850 gallon Mueller stainless steel kettle/tank approximately 54" diameter x 76" deep straight side. Bolted dished top, welded dished bottom. Equipped with approximately 1/2 HP Lightnin agitator. (4) internal baffles. 3" center bottom drain. Internal rated 50 psi @ 200 degrees F. Stainless conventional jacket rated 38 psi @ 200 degrees F.