Pssopp 10Pcs Air Stone Ball Round 20mm Diameter for Aquarium Fish Tank Hydroponics Pump, Bubbler Diffuser Aeration Stone

• 【Pay Attention】Please remember to soak the air stone in water for about 30 minutes before usage. Remember that any air stone will need to be replaced every few months as they get clogged with dust, bacteria, and algae.
• 【10PCS In The Package】Made from high quality ore material, environmentally friendly, and stable. Comes with 10 Pcs ball shaped air stones. Diameter: Approx. 2cm/0.79in. Fitment: 4mm Standard Interface. Weight: Approx.70g/2.47oz.
• 【Creating Oxygenating Bubbles】We choose this best quality air stone that will create an abundant cascade of small to tiny bubbles rather than a limited number of larger bubbles. Can be easily driven by even air pumps.
• 【Easy To Operate】Easy to use, just simply connect airline and air pump to the bubble stone, and place in the aquarium. Suitable for aquarium, fish tank, pump, hydroponics and circulation system, etc.
• 【Great Decoration】Calabash shaped bubble stone design, unique and fashionable, perfect for decorating any fish tank. Also very helpful to dissolve more oxygen, increasing the amount of oxygen in the water.

Specification: Condition: 100% Brand New Material: Ore Color: Random Quantity: 10pcs Fitment: 4mm Standard Interface Diameter: Approx. 2cm/0.79in Weight: Approx.70g/2.47oz   Package List: 10 * Bubble Stone   Notes: 1. Please allow minor error due to the manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly difference from the real object. Please take the real one as standard.