Used in heat exchangers, refrigeration systems, and air conditioning. Also suitable as a feed pump in desalination systems. Quiet and low energy consumption. Protection against polarity reversal. Internal stainless steel bearings.4 plug-in fittings (2 x 1/2" threads + 1 x 14-mm straight hose adaptor + 1 x 14-mm 90° hose adaptor) and plug-in inlet strainer,