EcoPlus® Round Air Stones
These great quality Air Stones aerate and add oxygen to the water in your reservoir or grow system. Circulates nutrients into the water and helps to maintain an even water temperature. Use with 3/16 in ID air line product. Large unit is 7.8 in long by 3.4 in wide by 2 in high. Medium unit is 3.8 in long by 2.9 in wide by 1.8 in high. Small unit is 5.7 in long by 5.8 in wide by 2.2 in high.