Active Aqua Air Stone Round 4"x1" ML22073 accurate pH readings range between

accurate pH readings range between pH 3

Digital screen displays current room temperature

and your plants will thank you

garbage cans

Active Aqua Air Stone Round 4"x1" ML22073 accurate pH readings range betweenActive 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. This one is 4"