Pawfly 8 PCS Large Air Stones Cylinder, 4 x 2 Inch Aerator Bubble Diffuser for Ponds, Aquarium or Fish Tank

The 4 Inch Air Stone Cylinders from Pawfly are the perfect addition to any aquarium or water reservoir.

These durable air stones feature steady bubbles and a high dissolved oxygen rate, providing optimal aeration for your fish and plants.

Made from enduring and washable silicon carbide, they are built to keep stable in water and produce constant bubbles for hours on end.

With 8 pieces included, you'll have plenty to outfit your entire aquarium or reservoir.

Don't settle for anything less, choose the Pawfly 4 Inch Air Stone Cylinders for all your aeration needs.