5.5" - 1 count Penn Plax Aqua-Mist Airstone

Penn Plax Aqua-Mist Airstone adds a healthy stream of bubbles to your aquarium. This long-lasting sand stone aquarium aerator will add beauty to your fresh or saltwater aquarium.

• Adds a healthy stream of bubbles to your aquarium
• Multiple stones can be connected together
• Sandstone airstones can be used in fresh or saltwater aquariums