Unused 12.7 liters corrugated tube stainless steel heat exchanger. Manufactured by HRS. Model DTA 89/60. Shell material 316L, 253 psi (17.5 bar) max pressure @401F (205C), tube material 304SS, 217 pai (15 bar) max pressure @140 F (60C). Serial #P05716/P-A. Built 2013. Previous use: Product heater in GEA freeze concentration plant.