10cm (4 Inch) Bar Aquarium Airstone

10cm (4 Inch) Bar Aquarium Airstone. Send a stream of air bubbles thru your aquarium bed with this aquarium Airstone diffuser, bubbler bar. Simply attach to your air pump with standard airline tubing to create a decorative curtain of tiny bubbles that helps agitate and aerate your aquarium water. 10cm (4 Inch) Bar Aquarium Airstone is great for freshwater, saltwater/reef/marine aquariums and hydroponic use Fits standard air line tubing.