The 2 inch air stone cylinders 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 but Mighty: Each cylinder measures 08 D x 2 H and weighs 07 oz Small but well-constructed for continual bubbling Ideal for small fish tanks or aquariums Medium Bubbles: The air stone cylinders produce a good amount of dense bubbles A great way to increase oxygen solubility in your aquarium and enliven the aquatic lives Model: ASc-050B Jetting volume: 12 Lmin Recommended air pump power: 25 W - 4 W Standard ID airline tubing: 316 Also great for aerating DWc systems of small gardens Reliable Material: Made of mineral material and built solidly it causes no effect to the health of your aquatics Help keep your fish growing and living 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