Active Aqua Air Stone Round, 8" Environment Controllers This strong and durable pump

This strong and durable pump is widely used to provide oxygen in hydroponic systems and they are convenient to operate without oil or noise

Both controllers can be connected directly to fans

immediate adjustments can also be made when something is about to go wrong

Strengthens plant cells and tissues for increased resistance to stress

Active Aqua Air Stone Round, 8" Environment Controllers This strong and durable pumpActive Aqua air stones are an ideal way to add oxygen to your hydroponic growing system. The micropore design energizes the growing solution as it aerates and circulates nutrients. Air stones will extend the life of your nutrient solution, help keep roots healthy, and promote exceptional growth. Comes with easy mount suction cups. Standard pressure 0. 01 MPa, Max pressure 0. 012 MPa Choose from two versatile, round air stone disc sizes: 4 inch: 4"