Medium Bubbles: The air stone balls produce a good amount of dense bubbles. A great way to increase oxygen solubility in your aquarium and enliven the aquatic lives.
Model: ASR-030; Jetting volume: 1 L/min; Recommended air pump power: > 2 W; Standard ID airline tubing: 3/16". Well-built and efficient for long-time service.
Reliable Material: Made of mineral material and sintered at a high temperature. Great for aeration in fish tanks, aquariums or koi ponds. Keep fish or roots growing healthily.
Easy to Sink: Each ball measures 1.2" in diameter and weighs 1 oz. Well weighted to sink to the bottom and lie stably in your tank without floating up.
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.
