Check the listing for details. Active Aqua Air Stone, Round W/ Suction Cups 8" x 1". Condition: New. Listed at 25.00 USD. Elevate your hydroponic system with this round Active Aqua Air Stone. Measuring 8 inches in diameter and featuring suction cups for easy installation, this air diffuser is perfect for improving the aeration in your water system. Designed specifically for hydroponic setups, this air stone is suitable for hoses with a diameter of 3/8 inches. Experience the benefits of increased oxygenation for your plants without worrying about the condition of the item you're purchasing. This hydroponic air stone is the perfect addition to your system, providing improved air flow and healthy roots. Don't miss out on this essential piece of water aeration equipment. Active 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 0.012 MPa, Max pressure 0.015 MPaChoose from two versatile, round air stone disc sizes. This one is 8" inches. Uses 3/8" ID tubing.