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Humboldt Nutrients
Master-A, 15 gal. [Item # hf-HNMA425]


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List Price: $689.47
You Save: $304.75 (44.2%)

Price: $384.72
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Humboldt Nutrients Master-A, 15 gal. (HNMA425)

NPK 4-0-3

Humboldt Nutrients Master A&B is a premium two-part fertilizer program designed for all plants made with non-toxic, high quality ingredients.

Humboldt Nutrients has formulated this vigorous 2-part nutrient solution for use on any plant, in any growing medium and contains no EDTA’s.

The Humboldt Nutrients team of chemists and agronomists emphasize balance and consistency with all our formulas. Master A&B is formulated to provide your favorite plants with higher absorption of nutrients, vitamins, minerals and trace elements.

The Master A&B series stands apart from your standard base nutrient line by making macro and micro nutrients more available to your plant.

Used in conjunction with Humboldt Nutrients powerful additives we assure that your yields and quality will increase so dramatically, that your friends will call you simply, “The Master.”

DIRECTIONS: Use 1:1 Ratio with Master A&B as a two-part Base Bloom Nutrient. Adjust PPM higher in later stages of the bloom cycle to desired strength.

DERIVED FROM: Ammonium Nitrate, Potassium Nitrate, Calcium Nitrate, Sodium Molybdate, Calcium Carbonate, Sodium Borate, Iron, Zinc, Manganese, Boron and Molybendum.



Manufacturer's Product Information
MSRP each $656.38
UPC837654466605
Dimensions1.75 x 6 x 4.5
Case Quantity1


— LTL Shipping Required.

— Ships from HF: OR, CA, CO, PA, TX, 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.

Specifications for Master-A, 15 gal. hf-HNMA425:
  EACH Packaged CASE PALLET
UPC: 837654883709    
Volume: 3.13    
Dimensional Weight: 32.61    
Weight (lbs): 153.22    
Approx Length (inches): 14.5    
Approx Width (inches): 14.5    
Approx Height (inches): 25.75    

For more information, please visit the manufacturer Humboldt Nutrients' website.
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