AirCube Active Oxygen 6 Site Grow CubesThe AirCube airflow is a 6 bucket expansion kit designed to work with the AirCube Advance Brain Controller and PopTank Ultra Heavy Duty Collapsible Reservoir. The one and only bucket system with proprietary fabric pot inserts, which is the only way to air prune your roots, resulting in a massive root system. These are the largest buckets in its class, at 5 gallons each! These buckets are also the most versatile buckets in the industry, allowing you to