Bubble Magus NAC-7 Specification * Suitable for 500L to 700L Tank * ATMAN PH2500 Pump with new needle wheel * Watt :28W Air Intake 600L/hr * Size :9.25" x8.5x 20 Light Bioload 180 Gallons Medium Bioload 150 Gallons Heavy Bioload 125 Gallons