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A pH meter is only as reliable as its last calibration, and skipping that step is one of the fastest ways to over- or under-correct a nutrient solution. Whether you are using the Aqua Master Tools H600 Pro Handheld Meter or a portable pen, this pH 7.00 Calibration Solution resets your equipment to a precise, NIST-traceable midpoint, giving you confidence that every reading afterward is accurate.
Sold as a case of 8 bottles at 500ml each, this large-volume format is built for shops, commercial facilities utilizing the Aqua Master Tools C800 Pro pH/EC Controller, or labs calibrating meters often enough to justify a bulk supply over smaller bottles or single sachets.
Certified pH 7.00 formulation calibrates meters to a recognized national standard.
Ships as a case of 8 bottles, ideal for frequent calibration or commercial use.
A large volume per bottle, cutting down on how often you need to reorder.
Stays accurate when stored between 15-25°C, ideal for grow rooms, tents, and labs.
| Specification | Value |
|---|---|
| Solution Type | pH 7.00 Calibration Solution |
| Volume per Bottle | 500 ml |
| Bottles per Case | 8 |
| Standard | NIST-Traceable |
| Storage Temperature | 15 – 25 °C |
This case includes 8 bottles of 500ml pH 7.00 calibration solution.
Once opened, close the bottle immediately after use and do not return used liquid to the bottle, as this can introduce contamination and affect calibration accuracy.
pH 7.00 represents the neutral midpoint on the pH scale, making it a standard reference point for calibrating most consumer and commercial pH meters.
Keep bottles sealed and store them between 15-25°C. While this solution is for calibration, remember that your probe itself requires Aqua Master Tools Storage Solution KCl to stay hydrated and accurate over time.
For best accuracy, many growers use pH 7.00 alongside a second point like the Aqua Master Tools Calibration Solution pH 4.01 to perform a two-point calibration across the meter's working range.
For high-volume or commercial use, a bulk 500ml case typically offers more solution per dollar than smaller bottles or individual 20ml sachets, while maintaining the same NIST-traceable accuracy.
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Equipping home growers, craft producers, and commercial operations across North America since 2016.
