-3- plate type heat exchanger, CETETHERM make, plates made of stainless steel in a heavy duty mild steel frame with threaded adapters 1 1/4", max. 10 bar pressure. type CT 95MP/21, with 21 plates,volume 1,8dm3, type CT 95PM/36, with 36 plates,volume 3,1dm3, type CT 95PM/45, with 45 plates,volume 4,0dm3