---
product_id: 654515407
title: "HI70300L pH/ORP Electrode Storage Solution, 500mL Bottle"
brand: "hanna instruments"
price: "€ 58.98"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/654515407-hi70300l-ph-orp-electrode-storage-solution-500ml-bottle
store_origin: NL
region: Netherlands
---

# Prevents electrode clogging for rapid response 500mL precision storage volume Optimized for pH/ORP electrode longevity HI70300L pH/ORP Electrode Storage Solution, 500mL Bottle

**Brand:** hanna instruments
**Price:** € 58.98
**Availability:** ✅ In Stock

## Summary

> 💧 Stay sharp, measure smarter — never miss a beat with HI70300L!

## Quick Answers

- **What is this?** HI70300L pH/ORP Electrode Storage Solution, 500mL Bottle by hanna instruments
- **How much does it cost?** € 58.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/654515407-hi70300l-ph-orp-electrode-storage-solution-500ml-bottle)

## Best For

- hanna instruments enthusiasts

## Why This Product

- Trusted hanna instruments brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Generous 500mL Bottle:** Long-lasting supply to keep your lab or fieldwork uninterrupted
- • **Fast Response Every Time:** Minimizes clogging to deliver rapid, reliable measurements
- • **Optimal Storage Solution:** Specifically formulated for pH/ORP electrodes’ peak performance
- • **Keep Your Electrodes Ready:** Ensures glass bulb and junction stay moist for instant accuracy
- • **Simple & Effective Maintenance:** Just a few drops in the protective cap to extend electrode life

## Overview

The Hanna Instruments HI70300L is a 500mL pH/ORP electrode storage solution designed to keep electrodes moist, prevent clogging, and ensure fast, accurate readings. Ideal for professionals seeking reliable sensor maintenance and extended electrode lifespan.

## Description

pH/ORP 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. Size: 500ml. Pack of 1.

## Features

- pH/ORP 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
- Size: 500ml
- Pack of 1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01J5F1U3G |
| Best Sellers Rank | #42,694 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Electrolyte Solutions |
| Date First Available | January 7, 2008 |
| Department | mens |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.1 pounds |
| Item model number | HI 70300L |
| Manufacturer | Hanna Instruments |
| Product Dimensions | 50 x 50 x 50 inches |

## Images

![HI70300L pH/ORP Electrode Storage Solution, 500mL Bottle - Image 1](https://m.media-amazon.com/images/I/61wTUyxGBBL.jpg)

## Questions & Answers

**Q: whats the difference between this and their GroLine storage solution?**
A: I use Skunk Labs Potassium Chloride solution . it's cheaper

**Q: After a few days, the solution becomes crystallized and chunky. What am I doing wrong?**
A: Not sure. Mine lasted for weeks and only became crystallized of left uncapped or in the open air . Cld be bad to begin with if only a cpl days . Try gettin a refund or a new order and see what happens ..

**Q: How much of this are we supposed to use on the ORP meter tip?  Just pour some into the basin that the tip slides into?**
A: Well Hanna says not to store the unit in that cap for what reason idk at least on my ph 55 meter  but I use those packets it comes with to store it in and use just enuff to cover the electrode then change it once a week or so  not sure what ph meter u have but you could most likely use the cap I used it on the last unit I owned so ur call

**Q: This is probably an obvious answer but I thought I'd be careful; Can this storage solution be used for an Oakton pH meter?  This is way cheaper.**
A: I'm sure its universal just one thing when I used it, it got crusty on me so I just use ph 4 or 7 solution to store mine in and use the cleanin solution once a week on it is all but it would work for your meter if you wanna try it out for yourself and see.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Overall quality beyond doubts—well worth adding to your calibration routine!
*by S***L on August 1, 2025*

Keeps the glass membrane hydrated, prevents microbial growth, and protects the reference junction—crucial for fast and accurate readings. I use it after cleaning or during idle periods; soaking for an hour reactivates sluggish probes reliably. The bottle is sealed with expiration and lot info for traceability

### ⭐⭐⭐⭐⭐ Nice
*by J***Y on December 10, 2016*

Works great. I use this to store my electrode in between uses because the electrode is to never go dry. If you don't use the electrode for a long time and let it dry out, soak it in this solution for about an hour or more, then calibrate. No biggie. It will mold and grow bacteria in solution after awhile. I've found that rinsing the electrode in between uses helps keep this to a minimum.

### ⭐⭐⭐⭐⭐ quality product
*by S***S on April 5, 2014*

Good quality solution keeps the electrode clean in between uses and it lasts a long time for the money excellent

## Frequently Bought Together

- Hanna Instruments HI70300L pH/ORP Electrode Storage Solution, 500mL (16.9oz) Bottle
- Hanna Instruments HI7061L General Purpose Electrode Cleaning Solution, 500mL Bottle
- Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-18*