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Amazon.com: Bluelab CONTPH pH Controller with Monitoring and Dosing in Water Digital Meter for Hydroponic System and Indoor Plant Grow with Easy Calibration, 1, White : Everything Else
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Agrowtek GrowControl MDX AgrowDose Mini Dosing Controller System With Single Peristaltic Pump & Temperature, pH, EC, ORP Sensors Complete Fertigation Systems & Nutrient pH Dosing Kits Fertigation Systems & Autodosers Garden Care
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Bluelab CONTPRO Pro Controller for Fully Automated 24/7 Digital Monitor, Dosing, and Data Logging of Hydroponics Reservoir (Base Only, No Pump), includes pH, EC, and temperature probe
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