Review on Gikfun AE1207 12V DC Peristaltic Dosing Pump with Connector - Ideal for Arduino Aquarium, Lab Analysis, DIY Projects by Heather Gorman

The silicone tubing on all my pumps ruptured and leaked within 2 weeks of purchase. Luckily my application is for feed water and the pump tube is easy to replace otherwise I would have returned them and given them a lower rating. At 12 VDC, the actual flow rate (no ramp) is closer to 6070 mL/min. The suction is strong enough to maintain that flow rate with my 50mm lift setup. Overall I'm satisfied, I would only recommend buyers to have spare silicone hoses with 4mm OD and 2mm ID on hand. *Note. I've tried swapping out the silicone tubing which is 4mm OD and 3mm ID and the motor doesn't produce any noticeable suction.