Huge skimmer built like a tank. Can handle 250-400 gal.

Asking $600, but open to offers.

VertexAlpha 250 Skimmer
http://bit.ly/2xOz66z
Beastof a skimmer, easily handles ~250gal total volume, i would guess itcan go to 300-400 heavily stocked.
FromBRS:
TankSize: 200 - 450 Gallons (750 - 1700 L)
Footprint:13" x 18.5"
Height:24.5"
AirDraw: Adjustable 1800 to 2100 LPH