... ) Design based on the French Standard NF4142) The well-known brand throttling devices can control the refrigerant flow more accurately3) Compact ... the factory. CERTIFICATIONSCE, CB, EC, ETL, CETL, C-TICK, WATER MARK, STANDARD MARK, UL, SABS, SANS, SAA, SASO, VDE, RoHS, REACH, NF414 ... pool heater(CE, CB, EC, ETL, CETL, C-TICK, WATER MARK, STANDARD MARK, UL, SABS, SANS, SAA, SASO)