Home / Freshwater Aquarium / Miscellaneous / Aqua One 4cm Round Ball Ceramic Air Stone Aqua One 4cm Round Ball Ceramic Air Stone$4.95 Out of stock Category: Miscellaneous Tags: Air Stones, Aqua One, Brands, Equipment, Equipment: Airline Tubing and Accessories Product ID: 5233 Description Description Description: Aqua One air stones play an important role in providing air in aquariums. Product Description: Single 4cm Round Ball Air stone Ceramic air stones produce better air bubbles Ceramic air stones are longer lasting Related products Aqua One Easy Read Thermometer – Inside Tank $14.95 Buy now Bettamatic Automatic Daily Betta Feeder $42.95 Buy now Out of stock Aqua One Airline Gang Valve – 3 Way $3.30 Buy now