Proactive PKB 16/21 Nutrient Absorption Enhancer This product is not stocked

This product is not stocked in-store

✅ Low-noise operation

Cable and Ventilation Ports: Multiple cable and ventilation access points make it easy to install fans

Rich in Essential Micronutrients: Includes trace elements to enhance plant health and overall vitality

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Proactive PKB 16/21 Nutrient Absorption Enhancer This product is not stockedProactive PKB Methodology N: 0. 0 P: 16. 0 K: 21. 0 B: 0. 5PKB 16 21 Professional PK Flowering Additive Proactive PKB 16 21 is a high performance professional flowering additive featuring a completely unique phosphorus to potassium ratio of 16 21, enhanced with added boron to maximize flowering performance and crop quality. Designed specifically for the bloom phase, PKB 16 21 enhances photosynthesis, supports efficient water regulation, and delivers