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adding nitrogen nd potassium to enhance the plant's photosynthetic rate and energy transfer
which also makes them run quieter
this causes Multi Total to reduce your nutrient costs to save you money
Flexible enough to run a bench
Airbox Refill Cartridge Filter Size:Airbox Refill Cartridge 4 adding nitrogen nd potassium toRefill cartridge for Air Box Air Filter Stealth 1 2 3 4 4+, fits these three models. Single Filter. This refill cartridge size is suitable for Airbox 1, Airbox 2 and Airbox 3, Airbox 4, and Airbox 4+. (IMPORTANT: Order 1 OR 2 OR 3 OR 4 OR 4 Plus cartridges as required for your Air Box unit)
