Check the listing for details. 3/4 HP 5.2 CFM Large Pond Aerator + 200Feet Self Weighted Tube + 2 Diffusers Kit. Condition: New. Listed at 327.99 USD. 3/4 HP 5.2 CFM Large Pond Aerator + 200Feet Self Weighted Tube + 2 Diffusers KitPackage Included:1x Pond Aerator4x Stainless Steel Clamp2x Stainless Steel Aeration Diffusers2x 100’ Air Hose1x Time Controller1x Manual SpecificationsPower3/4HP, 550WMax Pond SizeUp to 3 AcreMax Volume5.2CFM/148L/min/2340GPHLow Noise Lever＜60 dBVoltageAC 110VItem Weight66.2 lbs / 30 kgPump Size13"L x 5.5"W x 8.3"H(33*14*21cm)Working Temperature0~100 ℉Features:★Smart Time ControllerIf you need the aerator to work according to your time setting, you can plug the time controller. The timer also has various functions: child lock, countdown alarm, intermittent operation, and automatic timing switch operation. ★Thermal Protection SystemOur motor is equipped with a thermal protection system, allowing the pond aerator to stop working when the working temperature exceeds 275 ℉, thus avoiding damage to the pond aerator and increasing the lifespan of the machine. ★Powerful & Stable OperationEquipped with a 550W pure copper motor, it can aerate ponds up to 3 acres. Highly efficient and quiet 3/4 HP oil-free Rocking Piston Air Pump with maximum 4.7 CFM volume. The operating noise level is below 60dB, which creates a quiet and comfortable environment for your pond. The working temperature ranges from 0 ℉ to 100℉, which almost fits all seasons.