TerraBloom EC 4 Inch Inline Duct Fan With Speed Controller ECMF-100 + 16 Ft Vent

Used for about 2 years as exhaust fan for 3d printer. Bought new on Amazon. All function normal. Might need grease (I can try do it if you ask, but cannot promise because I have not taken it apart before.). If you plan on using it for intake fan, please let me know. I will take it apart and wipe the inside out to remove as much plastic dust as possible. I have cleaned the outside of the fan without taking apart the device. The duck vent has been washed with water. Come with original packaging and accessories. (You get everything shown in the images.)