Home / Freshwater Aquarium / Miscellaneous / Aqua One 2.5cm Round Ball Sand Air Stone Aqua One 2.5cm Round Ball Sand Air Stone$2.95 Out of stock Category: Miscellaneous Tags: Air Stones, Aqua One, Brands, Equipment, Equipment: Airline Tubing and Accessories Product ID: 5251 Description Description Description: Aqua One air stones play an important role in providing air in aquariums. Product Description: Single 2.5cm Round Ball Air stone Related products Aqua One Airline Check Valve Single $3.00 Buy now Aqua One Premium Glass Thermometer with Suction Cup $4.95 Buy now Out of stock Aqua One 30cm Aquarium Air Stone Bar $6.60 Buy now