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sustainable maintenance
Double-junction pH probe for accurate measurements
100 psi / 7 bar pressure
Standard BNC connector
Bluelab pH 7.0 Calibration Solution - 500 ml US halloween25 sustainable maintenancepH 7. 0 calibration solutions a must in every grower's toolbox Features: Contains 500 ml 16. 9 fl oz Boost your pH products longevity with regular cleaning and calibration
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