Durable 1.5" cylindrical air stones that increase oxygenation, improve water circulation, and create beautiful underwater bubble effects. Fits standard airline tubing.

The Marina 1.5" Cylindrical Air Stone (4 Pack) is an essential aeration accessory for any freshwater or marine aquarium. Designed to diffuse air evenly in all directions, these durable air stones help increase surface agitation, boost oxygen levels, and release harmful carbon dioxide buildup — all while creating a visually stunning underwater bubble display.

Easy to install and compatible with standard airline tubing, each air stone can be placed anywhere in your tank and used with most air pumps. Whether you’re improving water quality, enhancing circulation, or adding decorative aeration, Marina air stones deliver reliable performance and long‑lasting durability.

Perfect For

• Freshwater aquariums

• Marine aquariums

• Planted tanks

• Nano tanks

• Betta tanks

• Sumps & refugiums

• ⭐ Key Benefits 

  • Durable cylindrical design diffuses air in every direction

  • Increases surface agitation for better gas exchange

  • Boosts oxygen replenishment for healthier fish

  • Helps release CO₂ buildup to improve water quality

  • Creates a dazzling underwater bubble scene

  • Fits standard airline tubing

  • Easy placement anywhere in the aquarium

  • 1.5" length – 4 stones per pack