Hi-Oxygen Koi Airstone 22x4cm Fish Pond & Aquarium Water Oxygenator

Ideal for the aeration of your large Koi pond.

The Superfish Koi Air Stone is a hi-oxygen long lasting air stone specially treated at very high temperatures and producing very fine air bubbles.

Highly durable air stone - Grey Hi Oxygen air stones are specially treated at very high temperatures to make them long lasting.

Produces an even stream of fine bubbles in your pond (Air pump not included)

For use with 4mm or 9mm Airline.

Approx Size: 22cm Long x 4cm Diameter