The Green‑Qube 300L is built to deliver a massive 3 × 3 × 2.2 m indoor grow space that can accommodate up to 36 mature plants. GQ300L is designed for heavy-duty use thanks to the skeleton made from thick 25 mm powder coated steel poles and its 100 kg load capacity. Air management in the GQ300L is extensive and flexible: six extra-large 13″ extraction ports with double socks accommodate both standard and acoustic ducting, alongside six cable entries and eight passive vents fitted with 700-micron bug-proof micro-mesh and LightSavers® hoods for stealthy yet effective airflow control. The inside reflective mylar helps with light distribution for better plant development. You’re a grower who prefers a smaller space? Then take a look at the GQ 1.2m x 2.4m x 2.2m or even the GQ120 1.2m x 1.2m x 2m.