Airbox Refill Cartridge 4 Filter Size:Airbox Refill Cartridge 4 Plus Irrigation systems regularly maintained with

Irrigation systems regularly maintained with Wet HOCL will last longer and run more optimally throughout

NOTE: liquid CO2 tank not included

calcium and iron

and works with heavy gauge ABS grow mod trays that will not bow

Industrial high velocity fans use less energy than air conditioners

Airbox Refill Cartridge 4 Filter Size:Airbox Refill Cartridge 4 Plus Irrigation systems regularly maintained withRefill 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)