Bluelab Replacement PH Probe 6 Inch Ventilation We’re the only hydroponics nutrient

We’re the only hydroponics nutrient company in the world manufacturing all our microbial products ourselves with a full-time Ph

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Bluelab Replacement PH Probe 6 Inch Ventilation We’re the only hydroponics nutrientBluelab Replacement PH Probe Combo + PH + Guardian A replacement probe for Bluelab Combo and pH Meters as well as the Bluelab Guardian Monitor. The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution. Unfortunately pH Probes do not last forever as they age through normal use and will eventually fail. With good care and use (keeping the probe tip wet and cleaning once a