* Fine Bubbles: The air stone produces lots of dense fine bubbles; A great

way to oxygenate your hydroponic growing systems, ponds, aquariums and enliven

the aquatic life

* Size: 4" x 2" x 2"; Recommended air pump powe: 4 - 8 W; Standard ID airline

tubing: 0.16" / 4 mm

* Durable Material: Made of mineral material and sintered at a high

temperature; The material is sturdy and durable which is safe to your fish

* Easy to Use: Soak the stone completely in water for 2 hour before use;

Clean it regularly with a brush as they get clogged after weeks or months of

usage

* Widely Applicable: Fit for hydroponic systems, ponds, aquariums or fish

tanks and other systems