Heat Exchanger, Heat Dissipation Capacity for Water 1,350,000 BtuH, Heat Dissipation Capacity for Oil 134,000 BtuH, Total Surface Area 23 sq ft, Shell Outside Diameter 6 1/8 in, Tube Length 29 1/8 in, Shell Material Brass, Tube Material Copper, Number of Passes 4, Shell Maximum Pressure Rating 300 psig, Shell Maximum Operating Temperature 300 Degrees F, Tube Maximum Pressure Rating 150 psig, Tube Maximum Operating Temperature 300 Degrees F, Fluid Compatibility Glycol, Oil, Steam, Water