"Used 450 GPH Manton Gaulin Homogenizer, Type 450 M12 5 Tbs, Serial # 12642642. Features All Stainless Steel Exterior With Polished Food Grade Finish, 1 3/16"" Diameter Plungers, Rated For Maximum Pressure Of 5000 Psi At Maximum Capacity Of 450 Gph, Two Stage Valve With Ball Valve Type Cylinders. Former Application Food Ingredients. (Some Repairs And Parts Need On Two Stage Valves)