Humboldts Secret Supplies
Ship from USA · 21 items · On Agora since 2025
Showing 1–20 of 21 items
nitrile gloves
hose-end sprayer – 32 ounce (2-pack)
monopotassium phosphate (mkp)
everything outdoor
ph up & down bundle
ph up
base a & b bundle
flower stacker
sweet & sticky
tree trunk
flower shield
calmag & iron
plant enzymes
everything indoor
greenify
starter kit
4-1 soil meter
everything growing
ph down
starter kit 2 – 8 bottle set (216 ounce total)
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