FLUVAL Q2 AIR PUMP.

Powerful yet extremely quiet, the Fluval Q2 Air Pump produces consistent air flow thanks to an advanced swing-arm and diaphragm design. A thick double-wall outer casing, integrated pump well and noise-suppressing baffle chamber make Fluval one of the quietest air pumps to date.
Key Features :

Powerful yet extremely quiet aquarium air pump
Produces consistent air flow thanks to advanced swing-arm and diaphragm design
Ultra quiet air pump, thanks to thick double-wall outer casing, integrated pump well and noise-suppressing baffle chamber
Quality design provides lasting and reliable performance
For aquariums up to 600 L (160 US gal)