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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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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