Unused 45 liter corrugated tube stainless steel heat exchanger. Manufactured by HRS. Model #DTA 168/89. Shell material 316L, 150 psi (10.4 bar) max pressure @205C, tube material 304SS, 145 psi (10 bar) max pressure @140F (60C). Built 2013. Previous use: Melter in GEA freeze concentration plant.