The tubing sinks to the bottom on its own so you don't need to tie bricks or weights to make the tubing sink out of sight like standard PVC tubing, which floats when filled with air. Self-Weighted Air Line is constructed of a high-density flexible PVC composite which allows it to be handled and installed easily coupled with the rapid sinking properties, this makes Self-Weighted Air Line an excellent choice to ensure aeration installations are quick and easy.

Key Features:

• Size: ½" internal diameter (ID) is common for moderate to longer runs and higher flow rates, reducing friction loss.
• Weight: Weighs 16kg for each 30m length.
• Weighted/Self-Sinking: Built-in weight (non-lead) keeps it at the bottom of the pond, preventing floating, tangling with boats, and damage from animals or freezing.
• Material: Durable, UV-resistant PVC, designed for long-lasting underwater use.
• Applications: Ideal for electric, solar, and windmill aerators, especially for medium-sized ponds and lakes.
• Benefits: Maximizes airflow, minimizes friction, prevents tangling, and enhances overall pond health. 

Supplied in 30m/100ft lengths.

Joiners available for longer lengths.