4mm internal diameter sinking airline for garden ponds. UV-resistant, weighted PVC air line available in lengths from 1m to 100m.

Aquacadabra 4mm Internal Diameter Sinking Airline is a weighted air line designed to deliver reliable airflow while staying securely on the bottom of your pond. Available in lengths from 1 metre to 100 metres, it provides a simple and tidy solution for pond aeration systems of all sizes. Manufactured from a durable PVC-based compound, the airline is UV-resistant, flexible and built for dependable long-term outdoor use.

Key Features

• Available in multiple lengths – Choose from 1m, 3m, 5m, 10m, 20m, 30m, 50m or 100m to suit your pond installation.
• 4mm internal diameter – Compatible with most standard pond air pumps, air stones and aeration equipment using 4mm airline.
• Naturally sinking design – Weighted construction sinks to the pond floor without the need for additional weights, keeping installations neat and unobtrusive.
• Black finish – Blends into the pond environment for a cleaner, more discreet appearance.
• UV-resistant PVC construction – Manufactured from a durable PVC-based compound that stands up to prolonged outdoor exposure.
• Flexible and kink resistant – Helps maintain consistent airflow while reducing the risk of kinking or cracking.
• Quick and simple installation – Connect to your air pump and position directly in the pond with no extra weighting required.
• Suitable for garden ponds – Ideal for use with air stones, pond aeration systems and other compatible air-powered pond equipment.

Whether you're installing a new aeration system or replacing existing airline, Aquacadabra Sinking Airline provides a practical and reliable way to deliver air where it's needed. With a choice of lengths from 1 metre to 100 metres, it's easy to find the right option for ponds of all sizes while maintaining a neat, professional-looking installation.