SPANCARE PHARMACEUTICALS 4pcs/Pack 12V DC DIY Peristaltic Liquid Pump Dosing Pump for Aquarium Lab Analytical, Flow Rate 5~100 mL/min

Liquid Pump Dosing Pump for Aquarium Lab Analytical, Flow Rate 5~100 mL/min .Size: 5~100mL/min Pack of 4 PRODUCT DESCRIPTIONSPeristaltic Liquid Pump Dosing Pump for Aquarium Lab Analytical, Flow Rate 1.Size: 5~100mL/min 2.(Pack of 4)3.Pumps great, turns on at around 6-7V and full speed is around 16V 4.The pumps generally tend to be pretty consistent, so one that pumps 1.2mL/second pretty much always pumps 1.1 to 1.3 mL/second.