99.9% Pure Bulk Hydroponic Approved USA Made 3-5 MM Crystals
Note: This Does NOT have an EPA label or EPA number on the label. This is feed grade Copper Sulfate.
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Weight: 24 Ounces (1.5 Pounds) Purity: 99% Pure Grade: Reagent Grade Texture: Fine Crystals CAS Number: 7778-80-5
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