pH test kit, 6.5 - 8.5 pH, model 17H

pH test kit, 6.5 - 8.5 pH, model 17H
Nr. produs: 147008
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Color comparator box

Color comparator box

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Color disc pH, phenol red, 6.5-8.5

Color disc pH, phenol red, 6.5-8.5

Nr. produs: 9261100

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