OASE SubFlo Pack 4 S – complete aeration for shallow ponds up to 2,000 m²

The OASE SubFlo 4 S pack brings together all the equipment needed to aerate a pond, pool or shallow body of water from the bottom, up to 2 m deep, over an area of up to 2,000 m², depending on its depth and shape. One base unit installed on the bank, 4 diffusers placed on the bottom and the hoses to connect them: a complete setup that uses just 160 W.

• ✓ Up to 2,000 m²
• ✓ Up to 2 m deep
• ✓ 4 aeration points
• ✓ SAS 240 compressor · 160 W
• ✓ Quiet, invisible from the surface

What the pack contains

Choose the pack and save 5% compared with buying the items separately.

How the installation is set up

Illustrative diagram: Tubing L is shown in orange; the lengths of Tubing H running to each diffuser are shown in grey.

1. The base unit on the bank: install the SubFlo Base 4 S in a dry location near a 230 V outlet. Its SAS 240 compressor continuously delivers up to 240 L of air per minute at 160 W.
2. From the base unit to the water's edge: Tubing L. UV-resistant and low-friction, it carries air from the base unit to the pond's edge, up to a maximum length of 30 m.
3. From the water's edge to the diffusers: Tubing H. Weighted so it sinks by itself and stays on the bottom. Cut the roll into one length per diffuser, tailored to the distance to each one.
4. On the bottom: 4 SubFlo Diffuser S units, supplied empty and weighted on site with gravel or sand. They distribute ultra-fine air bubbles along their entire length, gently circulating all the water.

30 m or 150 m of weighted hose?

Not sure? Send us a plan and we'll work out the distances.

Why aerate a shallow pond?

A shallow pond warms up quickly. In summer, warm water holds less oxygen, and at night plants and algae consume oxygen instead of producing it: oxygen levels are lowest in the early morning. On the bottom, organic matter then decomposes poorly, sludge builds up, and the nutrients released fuel algae growth. With 4 aeration points on the bottom, SubFlo supplies oxygen where it is needed, day and night, and circulates all the pond water.

The SubFlo system in video

Installation specifications

Have our experts check your installation

Before ordering, send us the surface area, maximum depth and a plan or photo of your pond at support@foudebassin.com, or call us on +32 (0)10 86 03 54. We'll check that the pack is suitable, advise you on diffuser placement and the hose length required. Aquiflor has been supporting water feature managers since 1998 and visits sites in Belgium and France to assess your body of water.

For a pond that stays healthy over time

Aeration creates the right conditions; bacteria do the work. Pair SubFlo with Aquipond Bactovase to break down accumulated sludge, and check the water's KH: if it is below 7 °dH, add minerals first with Nautex.