The popular electroair air pumps are highly reliable and very quiet in use, due to the high quality aluminium casing'. '.strtoupper('t')he weight means additional ballast is provided which significantly reduces vibration noise when in use.combined with the accessories kit, the pondxpert electroair 2100 will be able to disperse air throughout the pond, ensuring maximum aeration and water circulation'. '.strtoupper('t')his leads to an increase in healthy bacteria, resulting in a healthy pond 24 7.the electroair 2100 is perfectly suited for the following ponds br • no fish 14,875 litres 3,275 gallons br • fish 11,600 litres 2,550 gallons br • koi 5,800 litres 1,275 gallons½ price accessories kit – included accessories everything you need to set up the air pump'. '.strtoupper('b')r • 1 x 25m clear airline 4mm br • 4 x 50mm air stones br • premium 6 way chrome manifold with tapshigh grade casing the electroair range are made of a high grade aluminium alloy casing, which includes a double damping system and noise absorbing function which reduce the noise and vibrations of the pump.double air chambers the design of the electroair pumps allow them to produce a large quantity of air with strong air pressure.air pump foam included the electroair pumps include a filter sponge on top of the unit that will prevent debris from entering the pump'. '.strtoupper('e')xcellent for reducing maintenance'! '.strtoupper('i')p44 rated these pumps are weatherproof which means they can be situated close to the pond'. '.strtoupper('t')hey are designed to work outdoors 24 7 in all weathers.