For the best effect burry this bubbler under the gravel and a beautiful double curtain of bubbles will be created adding a wonderful effect to your aquarium. Also by burying this bubbler it will help to prevent it from floating up to the surface. Scaffolding will be required for the internal holes which are all linear and can be cleared with a small skewer afterwards. The hose connection has a 4mm internal diameter.

Dimensions: 127mm x 9mm x 20mm.