ITEM NAME:Air Stone Wooden Airstone For Protein Skimmer Aquarium Fish Tank Split Joint Ideal for Nano skimmers, air driven protein skimmers and foam fractionators Also can be used as a premium airstone in any aquarium due to the sheer volumes of micro bubbles these create once connected to an airpump. (airpump needs to be purchased separately.) Mouth diameter: 4mm; Length: 5*2cm Color: wood color Product set: 1* wood stone.1 wood stone. Color: wood color. Length: 5 2cm.
