Superfish Hi-Oxy Airstone 22*4cm

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.

Grey Hi-Oxygen air stone made out of Carborundum are specially treated at very high temperatures.

Highly durable air stone
Produces very fine air bubbles
Dimensions: 22cm x 4cm