JBL Prosilent Aeras Marin Wooden Air Diffuser S

Wood air stone for saltwater aquarium Constant air supply Very fine air bubbles Increases the efficiency of protein skimmers This wooden airstone is for exclusive use in Marine Tanks for best performance and very small bubbles. If used in Tropcial or planted tank, will not give desired results. Before initial use, please soak the air stone in water atleast for 48 hours This wooden Airstone comes in two sizes Small : 45mm Medium: 65mm Chose the right model.