4inch BLSC Submersible DC Solar Borehole Deep Well Pump Plastic Impeller -MPPT Controller -Factory Wholesale -China Supplier -High quality ：
1.NSK bearing and stainless-steel rotor for less abrasion and wearing.
2.Stainless steel water pump body and stainless steel/brass outlet.
3.Precision mechanical seal for great leakproofness, wear resistance and long lifespan.
4.Permanent magnet DC synchronous brushless motor.
5.Equipped with smart solar charge controller, incorporating MPPT technology, low-voltage protection, reverse polarity protection and dry running protection.
6.Plastic impeller and guide vane.
7.Oil cooled motor.
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