Humboldt Nutrients Master B
Humboldt Master B is a premium two part amino acid based fertilizer program designed for flowering plants. The amino acids and organic acid complexes set the Master A & B series apart from your standard base nutrient making all the macro and micro nutrients more available.
This item is sold individually. The case size is listed for your convenience for instances where you wish to order in case quantities.
— Ships from SS: WA, CA, CO, MI, TN, PA, FL USA.
* Special Order Item: made to order by the manufacturer, can take 2-6 weeks to ship, and cannot be canceled, returned or exchanged once ordered.