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Greenway Biotech Inc. Sul-Po-Mag 0-0-21.5 Sulfate of Potash Magnesia (K-Mag) 5 Pounds
$51.79
- 5 Pounds of Greenway Biotech Brand Sulfate of Potash Magnesia - Contains 21.5% Soluble Potash, 10.5% Magnesium, and 21% Sulfur - It is Derived from Sulfate of Potash-Magnesia - Great Source of Potassium, Magnesium, and Sulfur for Your Soil