Eco Plus Round AirStones
These great quality AirStones 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 inch ID air line.
small stone 1.5 inch diameter x 2 inch tall
med stone 2 inch diameter x 2 inch tall
Lrg stone 2 inch diameter x 4 inch tall