Enhance aquarium aeration and water movement with an expandable wall of bubbles. Marina Extendable Air Stone provides a simple and decorative way to increase water movement and surface agitation. Promotes proper gas exchange to accelerate oxygen replenishment and reduce carbon dioxide buildup.

Connect two or more Marina Extendable Air Stones for a larger, more spectacular bubble display. Encased in plastic for longer life and easy placement in aquarium gravel. 10" length. Fits standard airline tubing.

Installation Instructions

• Attach airline to airstone Inlet.
• Place in desired position in aquarium.
• Weight airstone down or cover with gravel if required.
• Use an air valve to properly regulate air flow.
• Use a check valve to prevent water from back siphoning through air line.

For multiple units, remove Plug from outlet and connect additional extendable air stone(s).

WARNING: This product can expose you to chemicals, including 1,3 Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.