Free Standard Tubing Value
Bundle With EACH Stone including ONE L, T, I Connector &  ONE Non-Return Check Valve.
Size: 1″H X 8″D.
Fits for 3/16” (4.7mm) inner diameter tube.
Designed to add oxygen and
circulate nutrition to your hydroponic growing system & aquarium.
Fit for hydroponic
systems, ponds, aquariums or fish tanks and other systems.
High-temperature molding
to produce fine bubbles for oxygen replacement.
Made of high quality and
harmless mineral material.
Ideal for hydroponic
systems, ponds, aquariums or fish tanks and other systems.