Penn Plax Round Aqua Mist Airstone

Use Penn-Plax Aqua-Mist Round Air Stones to create dazzling underwater scenes in your aquarium. These convenient bubblers increase surface motion, accelerate oxygen replenishment, and support healthier water and fish.Helps aerate your aquarium.Cylindrical airstones.Healthier environment for your fish.Dimensions: 7/16" cylinders.