its a Euro-reef RS-250

Rated for aquarium systems of +/- 250 gallons with a medium bioload
- Sump space required for skimmer: 13.5" x 13.5"
- Height: 30"
- Reaction chamber diameter: 8"
- Reaction chamber volume: 3.69 gallons
- Inlet size: 1"
- Outlet size: 1.5"
- Pump (included): SP5 Euro-Reef modified GEN-X 6000 water pump
- Pump power consumption: 60 Watts @ 115/120 VAC 60hz
- Air intake: 1,200 lph
current new price of $500 ( http://www.aquacave.com/euro-reef-rs...pump-1325.html )

asking $300
feel free to contact me at 403-690-3283 or daveasus@hotmail.com