Round grey airstone 4 ” Hydroponics Air Pump
These EcoPlus Air Stone Discs are great to put at the bottom of your reservoir for aeration. Quality construction with foam feet to reduce vibrations.
•Aerates and adds oxygen to the water
•Circulates nutrients in the water
•Helps maintain an even temperature
•Durable plastic enclosure For use with 3/16″ ID or 5/16″ ID tubing