Bluelab pH 7 Buffer Solution | Calibration Solution for pH Meters & Pens | 250ml & 500ml

🌱 Keep Your pH Readings Spot On — Every Single Time

Your plants can only thrive when your pH readings are right. The Bluelab pH 7 Buffer Solution is the go-to calibration solution trusted by home growers and commercial facilities across Australia. It keeps your Bluelab pH meters and pens reading accurately — so your roots stay happy and your grow stays on track.

📦 Available Sizes

• 250ml — Perfect for home growers and regular monthly calibrations
• 500ml — Ideal for larger setups, commercial grows, or frequent use

✅ Why You Need This

• 🎯 Two-point calibration made easy — works alongside pH 4.0 solution for precise results
• 🔬 NIST-certified — meets internationally traceable standards for accuracy you can trust
• 💧 Made specifically for Bluelab products — no guessing, no compatibility issues
• 📅 Calibrate monthly — or whenever your meter tells you it's time
• ⚡ Ready to measure immediately after calibration is complete

🔧 How to Use

After cleaning your pH probe, calibrate it using both pH 4.0 and pH 7.0 solutions. The process is the same for all Bluelab pH meters and pens — simple, quick, and consistent. Once done, you're ready to measure straight away.

💡 Tips to Get the Most Out of Your Solution

• Decant into a small container before use — never dip directly into the bottle
• Dispose of used solution — don't pour it back in
• Store in a cool, dark place with the lid tightly closed
• Keep out of reach of children

📐 Available Sizes at a Glance

🌿 Healthy roots start with accurate readings. Grab your Bluelab pH 7 Buffer Solution today and calibrate with confidence.