Aqua Master Tools C20 Peristaltic Pump Unit (Double)C10 pump unit 1x peristaltic pump for pH or nutrient dosing The C10 is a compact dosing pump with one peristaltic channel, designed for precise dosing of a single nutrient (EC) or for pH adjustment. The standard dosing rate is 1. 5 ml per second. Connection and Use Cases The C10 can be used in different configurations, depending on the application: As a pH dosing pump (for pH minus or pH plus): Connect directly to the left UTP port on the controller