Used Lightnin Fixed Mount, Closed Tank Design Air Operated Agitator, Model XGAC33. Clockwise rotation. Approximate 4__ diameter carbon steel stub shaft mounting flange with threaded bolt holes. Requires shaft and blade. Approximately 10__ diameter O.D. 316 stainless steel clad 8 hole tank mounting on approximately 3-1/2__ centers, serial# 06384643-01.