Features & purpose: The pump is made of copper material. Refined stainless steel motor casing, stainless steel motor shaft, copper impeller, are corrosion-resistant, which keep water much more sanitary and delicate apperance. With automatic-controlling switch or pressure switch and pressure pot, it can be used as automatic pump. PERFORMANCE CURVES: The pump motor has air-cooling device inside and is installed the thermal-protector, which can potector motor away from damage effectively. Price USD 29 / pc Price Condition FOB NINGBO