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Essentials CF Standard 2.8ms 250ml

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Essentials CF Standard 2.8ms 250ml

Calibration Fluid for EC/CF meters.

Essentials pH buffers are a known solution of a certain pH value designed to test the accuracy of pH meters used to measure the pH of a nutrient solution. Use to Calibrate your EC/CF meter every week to ensure maximum accuracy. Features CRC Cap for Safety.

Essentials CF Standard 2.8ms 250ml