15 lb SulPoMag Soluble Organic Fertilizer MAGNESIUM POTASH SULFUR KMAG Soil Hydr

Also known as KMAG SUL-PO-MAG KMS. Its maximum chloride content is less than 2.5 percent, minimizing the potential for fertilizer "burn.". K-Mag Premium has a typical SGN of 265 and is often used as a source of potassium, magnesium and sulfur in high-quality bulk blend formulas (NPK+Mg+S).