The OASE foam bubbler 22-5 K is an air-water foam nozzle. The ½" attachment nozzle made of high-quality plastic can be used regardless of the water level. It is particularly suitable for shallow water zones and smaller garden ponds. The intensive turbulence with air provides the water with plenty of oxygen. The OASE foam bubbler 22-5 K is suitable for OASE Aquarius Fountain Set 1500-3500, water feature height varies depending on pump capacity (e.g. Aquarius Fountain Set 1500 height 30 cm).