Ceramic Air Stones (High Quality) - 200mm Flat Disc Air Stone

These high quality long life air stones are made from a refined ceramic compound. They produce a very fine aeration and can be used in conjunction with any good air pump. All of the ceramic air products listed have plastic end housings which protect the air stone against abrasive contact with surrounding surfaces (except the 50mm ball type). Air StoneAirline sizeAir Flow200mm Flat Disc8mm20l/min50 x 300 Cylinder 8mm20l/min50 x 200 Cylinder8mm16l/min30 x 130mm Cylinder8/4mm (ideally 4mm)2l/min50mm Ball8/4mm (ideally 4mm)1l/min