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Humboldt Nutrients
Humboldt S.I. Structural Integrity Gallon (4/Cs) [Item # 723254]


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List Price: $85.05
You Save: $30.55 (35.9%)

Price: $54.50
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Humboldt Nutrients Structural Integrity

S.I. (Structural Integrity) is the newest addition to the Humboldt Nutrients family of products. S.I.’s proprietary blend is the most advanced silicate additive on the market today; formulated to instantly supply your root zone with the silicate needed to build strong, thick cell walls and cellular membranes, thus giving your plants the ability to hold heavier fruits and flowers. With S.I. from Humboldt Nutrients your plants will have the building materials they need to create the superier plant structure needed for driving a large and robust harvest.


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.

Specifications for Humboldt Nutrients S.I. Structural Integrity Gallon (4/Cs) 723254:
  EACH Packaged CASE PALLET
UPC: 013964095623    
Volume: 0.212 0.961  
Dimensional Weight: 1.884 8.56  
Weight (lbs): 10.2 42.75  
Approx Length (inches): 6.4 13.6  
Approx Width (inches): 5.1 11  
Approx Height (inches): 11.2 11.1  

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