It’s a fact

it is built to last and withstand the rigours of indoor gardening

PPF 420 & PPF 620 respectively

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Hardened Steel

Nutrifield Pk Heavy Size:20L It’s a factNutrifield Pk Heavy PK Heavy is a refined synthetic phosphorous (P) and potassium (K) supplement to support the plants increased PK needs during the flowering phase. Phosphorous is a key building block of the plants energy molecule, ATP (adenosine tri phosphate), which is required to support the elevated levels of metabolic activities during flowering, such as photosynthesis and respiration. Potassium is involved in the movement of water and nutrients