Master-A Options:Master-A, 2.5 gal. 2L single outlet air pump

2L single outlet air pump and Active Aqua AAPW160 submersible water pump

minimizing handling of the plant

- Capable to power the outlets in 2 steps with optional ILS4T-2 timer sold separately

WE DO NOT RECOMMEND USING VERDE IN RECIRCULATING SYSTEMS

Provides professional horticultural users with premium photosynthesis efficiency

Master-A Options:Master-A, 2.5 gal. 2L single outlet air pumpNPK 4 0 3 Humboldt Nutrients Master A&B is a premium two part fertilizer program designed for all plants made with non toxic, high quality ingredients. Humboldt Nutrients has formulated this vigorous 2 part nutrient solution for use on any plant, in any growing medium and contains no EDTAs. The Humboldt Nutrients team of chemists and agronomists emphasize balance and consistency with all our formulas. Master A&B is formulated to provide your favorite