Lee Industries Full-Jacketed Kettle- 50 Gallon. Nat'l Bd: 3590. Maximum design internal: Atmospheric. Jacket MAWP: 45 psi at 293 °F. Features a 2-piece flip-top lid with with a 7-1/2 in. L x 4 in. W access door. All Lee kettles come with the traditional high-polished sanitary finish. Jacket inlet/outlet: 3/4 in. NPT (female), (2) inlets: 1 in. NPT (female), 2 in. dia. port, tank discharge: 2 in. 'S' line valve. Overall dimensions: 32-1/2 in. diameter x 43 in. H.