Hanna Instruments HI73127 Spare pH Electrode for Testers save2 Design: Adjustable height stand for

Design: Adjustable height stand for tabletop growing

and plant vitality while fitting easily into a BIOCANNA soil-based feeding program

2x 3/8″ Pro Cross Connector

including Aqua-X

Fine-tune how tightly CO₂ levels are controlled within your target range

Hanna Instruments HI73127 Spare pH Electrode for Testers save2 Design: Adjustable height stand forHanna Instruments HI73127 Spare pH Electrode for Testers Replaceable Cartridge Electrode Extendable Cloth Junction Watertight Fit Compatible with pHep & Combo Testers The Hanna Instruments HI73127 is an original replacement pH electrode cartridge designed to restore fast response and accurate readings on select Hanna pocket testers. If your pH readings have become slow, unstable, or difficult to calibrate, replacing the electrode is often the quickest