304 Stainless Steel overall construction. Working Volume: 50 Gallons Heating Oil Jacket for heating with insulated stainless steel cladding. Heating Oil Jacket has ventilation to the atmosphere; holds NO pressure. 20 gallons of heating oil is required. (Heating oil level visible through the jacket sight glass.) Includes two 5KW Screw-Plug Immersion heaters with an adjustable thermostat. CSA Certified; UL 574; UL Recognized Component. Heaters include an adjustable thermostat that automatically turns on when the temperature drops below the set temperature and off when it rises above the set temperature. (1 hr 40 min estimated to a full temp.) Include temperature gauge threaded in sanitary thermowell. (No direct contact with the vessel media.) Dimension of 50 Gallon Jacketed Mixing Tank: 43″ L x 40 ” W x 77″ H Crated Dimension : 49″ L x 48″ W x 81″ H 2″ tri-clamp outlet with sanitary butterfly valve. (2) top mounted 2″ tri-clamp ports. Top spring-loaded hinged lid with a locking mechanism when in vertical holding position. The vessel interior holds NO pressure. 50 Gallon Jacketed Tank inner side is electropolished to 0.8µm (RA32 uin, #4 food-grade finish) sanitary finish. 5 HP Lesson ( or equivalent) Stainless Motor, 1800 RPM, NEMA Design, IP66 TEFC Enclosure, Washdown Duty. SEW Helical-bevel Gear Reduction Unit. 49:1 ratio. 460v, 60hz input, integrated Variable frequency speed control, 0 -30 RPM adjustable. Anchor Agitation with Wall Scraper