Hanna Electrode Storage Solution. To minimize clogging and ensure fast response time, always keep the glass bulb and the junction of your pH electrode moist. Store the electrode with a few drops of HI70300 storage solution in the protective cap.
Available in either 250mL or 500mL bottles.

• Special formulation to minimize microbial growth and osmotic/diffusion effects between the solution and inner reference electrolyte
• Manufactured specifically for pH and ORP electrodes
• Clearly marked expiration date and lot number
• Ensures quality and freshness of solution
• Hanna storage solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle