The 15 inch air stone discs feature durability steady bubbles and high dissolved oxygen rate Optimal for aerating your water reservoirs and livening up your aquatics A necessity to have in the house of aquatic lovers

Small Air Stone Disc: Each disc measures 15 D x 07 T and weighs 1 oz Tiny but well-constructed for continual bubbling Ideal for fish tanks DWc systems and small ponds Medium Bubbles: The air stone discs produce a good amount of dense bubbles A great way to increase oxygen solubility in your aquariums and enliven the aquatic lives Steady Output: Jetting volume: 2 Lmin Recommended air pump power: 2-4 W Standard ID airline tubing: 316 Efficient bubblers for constant air diffusion Reliable Material: Made of mineral material and sintered at a high temperature it wonAt affect the health of your aquatics Help keep your fish or roots growing healthily Easy to Use: Soak the stone completely in water for 1 hour before use clean it regularly with a brush as it gets clogged after weeks or months of usage