For Hydroponics, Gardening, Aquariums & Laboratory Use
Keep your pH meter precise and reliable with Growth Technology pH Buffer 4 & 7 – the professional standard for accurate calibration. Designed for hydroponics, aquariums, and plant nutrient monitoring, these high-quality solutions ensure your pH readings remain consistent and trustworthy for perfect plant health.
⚖️ Fixed pH Levels: Pre-set to exact values of 4.0 and 7.0 for reliable calibration.
🌿 Two-Point Calibration: Delivers more accuracy than single-point calibration.
🌱 Supports Plant Health: Prevents nutrient lockout caused by incorrect pH levels.
🧴 Available in 300ml or 1L: Ideal for hobby or professional growers.
🧫 Multi-Purpose: Perfect for hydroponics, gardening, aquariums, and lab testing.
Pour a small amount into a clean container (never reuse).
Calibrate your meter first with pH 7 (neutral).
Then calibrate with pH 4 for maximum precision.
Discard the used solution after calibration to prevent contamination.
Keep out of reach of children and pets.
Store in a cool, dark place away from sunlight.
Avoid contact with eyes or skin — rinse thoroughly if contact occurs.
Do not mix or dilute.
pH Buffer 4 – 300ml / 1L
pH Buffer 7 – 300ml / 1L
Brand new & sealed bottles
Securely packaged
Same or next working day shipping
🧪 Growth Technology pH Buffer 4 & 7 – professional-grade calibration solutions for precise pH measurement and healthy, thriving plants.