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Its long shelf life
Go & Grow drives strong vegetative performance
Engineered for serious growers and commercial operations
dual ball bearings support a 67
pH-neutral profile
HVC Smart Speed Controller CO2 Its long shelf lifeThe HVC Smart Speed Controller is a temperature driven controller for EC inline fans that delivers precise, stable airflow control without the need for a separate power supply. It draws power from the connected EC fan and uses an NTC thermal probe to read room temperature in real time. Two operating modes provide flexibility: Auto mode maintains a user set temperature by automatically adjusting fan speed in steps, while Manual mode holds a constant