Air Diffuser Tube (ring kit) 750mm

When a 300 mm ring isn’t enough but a full metre is overkill, the Air Diffusser Tube (Ring Kit) 750 mm gives you broad, balanced aeration across a larger pond area or filter chamber.

Designed to sit flat on the pond floor, it produces an even circular curtain of bubbles to improve oxygen levels and circulation.

Why choose the 750 mm ring?

• Large 750 mm diameter for wide coverage
• Even air distribution around the full ring
• Ideal for ponds, vats and larger filter bays
• Helps reduce low-oxygen spots on the pond floor

Fit notes

• Connect to a suitable air pump using compatible airline and hosetail fittings.
• Position flat on the pond base or within a filter chamber.
• Best suited to medium to high air output systems.

If you’re running multiple diffusers, use a manifold with adjustable air taps to balance flow and protect your pump diaphragms from excess back pressure.

Maintenance

• Check periodically for reduced airflow.
• Rinse if debris collects on the surface.
• Inspect airline connections for leaks or kinks.

A wider ring spreads airflow more evenly, supporting bio media and fish – especially during warmer weather when oxygen demand increases.

Hose size: 18 x 28 mm

Hose tail : 19mm.

The air rod has a T-piece 19mm in the middle for a better air distribution compared to a connection on only one side.