Housing is made by Galvanized steel sheet materials chould be able to bear corrosive. Same size for the inlet and outlet can install conveniently.
Impeller: Forward curve blade, all of them are designed backward curve with big flow, high efficiency, lower noise. The impeller is integrated into the external rotor motor so that the motor is equal to a wheel hub.
Motor: External motor single phase asynchrous motor passed CE, CCC and UL certification. THe impeller is installed on the external casing of motor directly and is driven by motor directly. Three speed control and reset thermal protect device. It can reduce noise and vibration by keeping balance for the current. In this way could ensure well management for the electricity. Mini size, reliable performance, high efficiency and long life.
Connection box: Made of ABS contained materials which can prevent burning, It is installed outward surface, connecting wire and disassmebling is very convenient.