The Elemental Solutions 4″ O2 Cylinder Air Stone is a useful tool to help encourage circulation and oxygen in your hydroponic grow system’s water. The 4″ O2 Cylinder Air Stone requires 3/16 tubing.
This Elemental Solutions® O2 Cylinder Stone accelerates oxygen replenishment and increases water circulation when used with a high-output air pump. The 4-inch O2 cylinder stone has a 2-inch diameter and is compatible with 3/16-inch-ID tubing.
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