Widely applicable: Suitable for hydroponic systems, ponds, aquarium fish tanks, helping extend the life of your nutrient solution, keep fish/ roots healthy and promote plant growth
Air Stone Dimension: 2-3/8”D x 0.5" H
Fits for 3/ 16 “ and 3/8” standard airline tubing
Quality and safe materials: Made of safe and washable material
Disk-shaped design makes it easily be hidden in your aquarium or other fish tank bubble decorations (Note: Soak them at least for an hour before use)
