$30.99 (as of 25/10/2018 23:10 PDT details )
Features:
- Ball bearings in the wheel frame, silent, long life time
- Flow range 0 , 400ml min
- Tube inner diameter outer diameter 6.4mm 9.6mm
- Can be equipped with constant speed DC deceleration motor, stepper motor adjustable speed and synchronous motor, long motor life and low noise stepper motor
- Tube material transparent silicone tube