Used Recirculating fluid heater by Heat Exchange and Transfer Inc, (Carnegie, PA) model WG 250-25-443, serial # j-5117. Features packaged closed loop design for circulating water/glycol at temperatures up to 250 f at 15 psi, 50 to 250 degrees f operating temperature range, 2 to 15 gpm heated media flow rate, 9 gallon fill tank, 5 gpm max flow rate, 27 kw at 460-480 volt, 3 phase, 37 amp max (wired for 480 service), Nema 4x, all cabinet enclosed with polished stainless steel enclosure, heater shell and all piping in the system are sch. 40 seamless 304 stainless steel pipe. Formerly used in pharmaceutical service.