【30 Pack & 4 Inch】30 pcs 4 inch air stone bar bubble diffuser. Fits for 0.16"/4mm inner diameter tube. Enough replacement for long term use.
【Quality Material】The air stone bar is made of mineral and plastic, strong and durable to use, and safe for your fish. It is no harm for the aquarium and suitable for fresh water or salt water.
【Increase Air Flow & Oxygen】Fish tank bubble air stone easily connect to air pump with standard aquarium tubing, this mineral stone oxygen diffuser creates a dramatic mist of healthy, aerating bubbles.
【Wide Applications】The aquarium bubble air stone is perfect for your fish tank or aquarium. Instantly create a great deal of tiny bubbles that help aerate your aquarium water, increasing oxygen to enhance water movement, nice to keep fish healthy.
【Easy to Install】The air stone bar should be soaked in water for at least 15 minutes before use. As long as your air pump is 2 watts or more, the air stone bar will produce a steady stream of bubbles to your tank.
