The GrowTent MINI GROW design incorporates 2 integrated openings for irrigation tubes 4" outlets for ventilation. There are 2 ventilation flaps situated around the base of the GrowTent to assist with good even airflow. The GrowTent is also equipped with 3 handy pockets for storing all your accessories. *Featuring 360' venting for uniform distribution of airflow. *Ideal for Autopot easy2grow sytem. *fits the modular growtent dry rack. *Equipped with 3 handy pockets for all your accessories. *Ideal for 1x 250w HID or CFL lighting.