Bluelab Replacement pH Probe for Combo, Guardian and pH Controller Cleaning Products Made with ~76% concentrated cedarwood

Made with ~76% concentrated cedarwood oil and proprietary NextGen neuro-disruption™ technology

Whether you're flushing your system or preserving equipment longevity

better health & maturity and major yield increase

Its nitrile butadiene rubber structure ensures smooth fitting over ports and piping

Bluelab Replacement pH Probe for Combo, Guardian and pH Controller Cleaning Products Made with ~76% concentrated cedarwoodBluelab 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