Aqua One PVC Encased Ring Airstone for Aquariums - Oxygen Diffuser for Fish Tanks, Hydroponics & Pond Aeration - Bubble Stone for Healthy Aquatic Plants and Fish

Aqua One's range of Airstones is available in various shapes and sizes. They turn the air from an Aqua One Air Pump into fine air bubbles to assist in maximising the oxygen level in your aquarium by moving water to the surface.

Specifications: 

• 10149 - Airstone PVC Encased Beauty Round 7.5cm
• 10150 - Airstone PVC Encased Beauty Round 12.5cm

One per pack.