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Store / Equipment - Irrigation & Hydroponics / pH Monitoring and Measuring / pH/EC Calibration & Care Kits
Bluelab Calibration Solution - pH 4.0 500mL

Bluelab Calibration Solution - pH 4.0 500mL

$21.95
In stock
1
Product Details
Your pH instruments require periodic calibration. Calibration is a two-step process. Generally, one first calibrates to 7.0, and then 4.0. You need both solutions to properly calibrate a pH instrument.
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Bluelab Calibration Solution - pH 4.0 500mL
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