When growing plants, it is vital to make sure that the pH levels of the soil are correct to support healthy growth and reduce the likelihood of your crop not developing properly.

Using Nutrifield's pH 4 Solution aids in making sure your pH testers are calibrated correctly and you are garnering accurate and reliable readings from the devices. Use this solution to acquire proper results from your tests. 

Directions: To ensure accurate readings in the pH 4-7 range, calibrate the pH measurement device following the device's usage instructions to both the Nutrifield pH 4 and pH 7 calibration solutions. These measurement devices should be calibrated weekly or as needed. 

Package Includes:

• 1 x pH 4 Calibration Solution 250ml

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