Used 225 gallon stainless steel reactor. Manufactured by Niagara. 3' dia x 4' straight side. Internal rated 25psi @600F, jacket rated 150psi @600F. Dish top and bottom, bolted removable top. 2 HP Lightnin Agitator, 68 RPM, 3" center bottom outlet. Lug mounted. National Board #50.