Product Description 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. 4″ long by 2″ in diameter. Fitting accepts 1/4″ air tubing. An ideal way to add oxygen to your hydroponic growing system. Micropore design energizes the growing solution as it aerates and circulates nutrients. Air stones extend the life of your nutrient solution, help keep roots healthy, and promote exceptional growth.
