Jacks 5-12-26 321


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Jacks 321 This formula was designed as a base foundation for hydroponic growing. It can be manipulated in such a manner as to provide virtually any combination of nutrient levels desired, providing the highest availability to plants, due primarily to Jack’s has proven ability to remain in true solution over long periods of time. Should be used in combination with the 15-0-0 Calcium Nitrate in a two-part system.

Bulk sizes are broken down from 11.34 KG retail/commercial bags into smaller 1 – 5kg portions to save you money over retail container sizes.

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Container Size

1 KG Bulk, 1 KG Retail, 11.34 KG Retail, 5 KG Bulk


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