Air Stone

Elite Ultra 4-Way Valve allows you to run up to 4 air driven products at once. Each valve is adjustable, so you can regulate the air output. Will not leak Up to 5 p.s.i. Molded all-plastic design, no seal rings, screws, rivets, joints or seams Hanger...

The Marina Air Stone diffuses water in every direction, creating a dazzling underwater display. The constant stream of bubbles increases surface agitation, adds oxygen to the aquatic environment and helps release carbon dioxide build-up for safe aquarium...

The Marina Cube Airstone is a durable air stone that diffuses water in every direction, creating a dazzling underwater scene. Increases surface agitation, accelerates oxygen replenishment and helps release carbon dioxide build-up. Air stone for aquarium...

The Marina Cylindrical Airstone (formerly Hagen Elite Aqua Fizzz) is a durable air stone that diffuses water in every direction. Airstones are small enough to fit common box filters and undergravel riser stems. Accelerates oxygen replenishment and helps...