Description Kockney Koi Dome Air Stones Kockney Koi Dome Air Stones provide powerful aeration with a wide surface area, ensuring optimal oxygenation and water circulation. Their unique dome shape offers even bubble distribution, minimising dead spots and supporting a clean, healthy environment for your koi. Sizes: 60mm Dome Air Stone. Suitable for 8mm & 4mm airline 6″ Dome Air Stone. Suitable for 8mm & 4mm airline 10″ Dome Air Stone. Suitable for 8mm
