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NPK: 7-2-4
High Grade mixture of the elements of phosphorus and potassium
0ml per 1 liter of nutrient solution
from seedling to just before harvest
Dimensions: 4
Essentials Lab Buffer 4 Solution Size:250ml NPK: 7-2-4Essentials LAB Buffer 4 is an ideal solution for calibration of pH meters at pH4. Regular calibration will keep your pH meter reading accurately. Key points: Highly accurate pH4 solution Ensures that your pH meter is reading correctly Technical Specifications: Acidity level: pH4 Available in: 250ml, 1 Litre
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