FoxFarm Grow Big Hydroponic Fertilizer
Vegetative stage liquid NPK 6-4-4 for hydroponics, in 1 gallon (~4kg) jugs. HTS 3105.90.00 as NPK fertilizer in retail ≤10kg for specialty growers. Supports rapid vegetative growth in soilless systems.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If urea-based without significant P/K
Urea fertilizers per note 2(a)(viii) use 3102.50 if not true NPK blend.
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Import Tips & Compliance
• Specify 'for hydroponic use' but classify by chemistry, not end-use
• Test for heavy metals; EPA limits apply to all fertilizers
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