... refrigerant flow more accurately3) Compact structure and good demountabality4) Titanium coil exchanger with full resistance against corrosion ensures a working ... before pacage in the factory. CERTIFICATIONSCE, CB, EC, ETL, CETL, C-TICK, WATER MARK, STANDARD MARK, UL, SABS, SANS, SAA, ... Management MACON swimming pool heater(CE, CB, EC, ETL, CETL, C-TICK, WATER MARK, STANDARD MARK, UL, SABS, SANS, SAA, ...