1、HARD AND CORROSION RESISTANT: The mechanical seal adopt a new type of hard and corrosion resistant tungsten Ti material, which can make the pump realize safe and continuous operation 2、SMALL SIZE, LOW NOISE: The overall structure is compact, small in size, low in noise, significant in energy saving, and convenient for maintenance 3、AUTOMATIC PROTECTION: Automatically protect the pump from water leakage, electric leakage, overload and over temperature, which improves the safety and reliability of the product 4、EASY TO REPLACE AND INSTALL: The product works for keep seal balanced, easy to replace and install, very convenient to use 5、LONG SERVICE LIFE: Come with a spring, which possess stable structure, excellent performance and long service life