Flat, circular Air Stone with large porous surface area and 4mm air line hose connector.
Ideal for use with the AP Series pond air pumps or OASE AquaOxy aerators to provide a wide submersed column of rising air bubbles, via connection to a suitable 4mm internal diameter air hose.
The rising column of air bubbles will assist in water circulation and add vital dissolved oxygen into the pond or water body.
Ideal for winter use to create an ice free area on the pond surface, where harmful gasses can escape.
Ideal for summer use to maintain oxygen levels, which can become critical as water temperature rises.
The circular carborundum air stone can also be used in conjunction with the optional 6 way valved air distributor to provide additional connection possibilities.
Optimum Air Flow rates of 15 - 20 Litres/minute per Air Stone (900 - 1200 Litres / Hour).
Air Stone Dimensions: 150mm Diameter / 18mm Thickness.