Bluelab Replacement pH Probe for Combo, Guardian and pH Controller Grow Tents unbleached plant fibers and finished

unbleached plant fibers and finished with the purest natural tree sap gumline

especially in late winter or early spring before active growth begins

Cooling Capacity 4500W/16000BTU

Allow adequate ventilation in all work areas — use in well-ventilated spaces or with local exhaust ventilation

Bluelab Replacement pH Probe for Combo, Guardian and pH Controller Grow Tents unbleached plant fibers and finishedBluelab Replacement pH Probe: Durable & Accurate pH Measurement for Your Bluelab Devices Keep your Bluelab pH devices performing at their best with the Bluelab Replacement pH Probe! This durable and affordable probe is compatible with a range of Bluelab meters and controllers, providing accurate and reliable pH measurements for optimal plant growth. Why pH Matters for Plant Health: pH plays a critical role in nutrient availability. Plants can only