Airmax PS10 System, 115V 100' 3/8" EasySet Airline Aerates Up to 1 Acre, Up To 12-21' Deep 115V, Includes 1 ProAir Diffuser Plate, 100' of 3/8" Weighted Airline Aeration Increases Oxygen & Circulation for Improved Water Clarity & Fish Health 1/4 HP Energy Efficient Rocking Piston Compressors, 2.3 Max CFM, Max/Running AMPS 1.6 or 0.8 Extremely Efficient, Approximate Operating Cost/Month $9.27 (24/7)