Description

pH Buffer 4 – 300ml Accurate Calibration Solution for Reliable pH Readings

pH Buffer 4 (300ml) is a high-quality, larger-volume calibration solution designed to keep your pH meters accurate and dependable. It provides a precise pH 4.0 reference point, which is essential for regular calibration—especially when growing in hydroponics, coco, soil, or aquaponic systems. Because the 300ml size offers more solution, it is ideal for growers who calibrate often or maintain multiple devices.

Key Features

✔ Accurate pH 4.0 Calibration

This solution provides a stable and precise pH 4 reference. As a result, you can calibrate your pH meter confidently and maintain consistent readings.

✔ Larger 300ml Bottle

The bigger bottle gives you more value and lasts longer. Therefore, it is perfect for regular calibration routines or busy grow rooms.

✔ Works with All pH Meters

pH Buffer 4 is fully compatible with Bluelab, Essentials, Milwaukee, and all other pH pens and meters. This makes it easy to use no matter your setup.

✔ Helps Prevent Incorrect pH Readings

Meters drift over time. Because of this, regular calibration with Buffer 4 helps prevent inaccurate pH readings that can lead to nutrient problems.

✔ Simple and Easy to Use

Just pour a small amount into a clean container, calibrate your meter according to its instructions, and rinse after use.

Specifications

• Type: pH calibration solution

• Value: pH 4.0

• Size: 300ml

• Use: Calibration of digital pH meters and pens

• Suitable For: Hydroponics, coco, soil, aquaponics, aquariums, and water testing

• Compatibility: Suitable for all meter brands

Why Choose pH Buffer 4 (300ml)?

This larger bottle is ideal for growers who calibrate often and want a reliable, cost-effective solution. Because it provides a stable pH 4 reference point, your meter stays accurate and dependable—helping you mix nutrients correctly and avoid pH-related plant issues.