Features:*Accept five different tubing size, pumping at the different flow rate, High Flow rate up to 2280ml/min*With stepper motor for reliable and long service life, low noise, precision dispensing *Flip-top pump head allows replacing the tube in seconds*Width applications: laboratory, medical, biological, printing, laundry, food, and beverage, etc Specifications Rotary speed 0.1～600rpmTube: 14# 16# 25# 17# 18# Power:50WMotor type: 57 stepper motor（2-phase and four-wire system）Voltage: DC24v inputRollers: 3Roller material: 304 stainless steelKindly pls note this listing is for a pump with stepper motor, the driver/controller is not included, If you need to buy driver, welcome to send a messageFlow rate(ml/min,medium:water):0.4~2280ml/min , sheet as follow: Tube type 14# 16# 25# 17# 18# ID×Wall Thickness 1.6×1.6 3.2×1.6 4.8×1.6 6.4×1.6 7.9×1.6mm0.1～600rpm 0.03~125 0.08~470 0.17~1120 0.3~1780 0.4~2280Shipping: with expedited express DHL/Fedex/UPS, taking about 9-12 days arriving after the paymentPacking: 1*pump with stepper motor