Ceramic plunger, durable in use;
High performance motor
Motor overloaded thermal protection switch
Electric leakage protection plug
Stainless iron shell
The design of this model is using Water lubricating mechanism
that replaced the device for the plunger loaded with butter. And
It can make a small amount of water return to the suction chamber
which is leakage oul from the main seal. It nover water leakage
and makes the main seal life multiplied.
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