Hanna Groline Nutrient Dosing System Model One Driver Helps prevent scale formation on

Helps prevent scale formation on RO membranes and prolongs equipment life downstream by transforming dissolved hardness into inactive particles

To sample CO2 levels in room air further from the controller (up to 30’ away)

Cucurbit Crops

Durable outer cover resists abrasion and UV

with our superior O-ring

Hanna Groline Nutrient Dosing System Model One Driver Helps prevent scale formation onThe GroLine Nutrient Dosing System HI981413 by HANNA Instruments is engineered for maintaining the concentration of fertilizer in the nutrient solution used in hydroponics and irrigation water. The nutrient concentration in the water used for irrigation is critical for the successful propagation and growth of plants. Simply insert the probe and injection valve in line with the re circulation pump and provide the chemical to be dosed. Available in