needlewheel protein skimmer BM-NAC3.5 CONE SKIMMER Capability : 100L-300L(25G-80G) pump:atman ph1100 Pump power: 8W, 110V 60Hz air intake : 200L/H Dimensions:115*170*435mm ( 4.5" * 6.6" * 17.1 ") cylinder: 4" Water Level :8"-10"