One used Internal Bubble Magus Protein Skimmer Curve A8. DC Pump used for about 4 years. Comes with original package.

Pump：Bubble-Magus DSP2000, DC24V, 18W
Footprint：225 x 255 x 565mm (8.86″ x 10.04″ x 22.24″)
Aquarium：900L (238g)
Water level: 10 inch