We quickly sold out of our first shipment of Tunze NanoStream 6020 Pumps ($42.92) but are pleased to report they are back today. Here's the lowdown: The new design of the NanoStream 6020 allows for discrete placement behind rock work, quiet operation all with a sleek and compact profile. Thanks to the special flow deflector and magnetic mount, this wide water-jet outlet can be rotated 360 degrees. The Silence Holder with rubber bumpers prevents the pump from touching the aquarium glass so vibration is eliminated and makes for noiseless operation. Made in Germany! For aquariums from 40 to 250 liters (10 to 660 GPH.). Circulation performance: Approx. 660 GPH (2500LPH). Power consumption: 4W Voltage / frequency: 115V/60Hz Cable length: 2m (78.7 in.) Dimensions without flow deflector: 65mm (2.56 in.) x 60mm (2.36 in.) x 72mm (2.83 in.) Outlet: 40mm (1.57 in.) Silence Magnet Holder up to a glass thickness of 12mm (1/2").