Key Features For use with standard airline For use in aquariums for helping to maintain healthy fish Can also be used in ponds Helps to add essential oxygen when connected to an air pump 300mm x 50mm High-oxygen air cylinders with protruding end caps to keep them clear of pond liners. Made of silica for finest air bubbles and long life. Available in various sizes. For use with standard airline For use in aquariums for helping to maintain healthy fish Can also be used in ponds Helps to add essential oxygen when connected to an air pump
