Get current pricing for Howe-baker, 6,500 Gal Howe-Baker Approx 6,500 Gal Vertical Carbon Steel, Jacketed, Insulated Pressure Tank. Internal Rated 412 Psi @ 400 Deg F. Jacket Rated 200 Psi @ 400 Deg F. . Product Category: Process Equipment, Sub Category: Pressure Vessels: