Seahorse Aquariums presents the JBL ProSilent a50. The JBL ProSilent a50 is unobtrusive and whisper quiet (< 38 dB(A)) due to special housing feet, soundproofing and weight.
The air output is 50 l/h with greater than 160 mbar air pressure with only 2.3 W power consumption. It has one diaphragm and one air outlet. It comes ready for connection with a 2 metre tube, a check valve and a bubble stone.