VEVOR Pond Aerators, 5.2CFM Aeration System for Lakes up to 3 Acres, 3/4 HP Air Compressor, 2 Diffusers & Two 100' Weighted Tubings, Outdoor Pond Aeration Pump for Deep Water Oxygen CirculationThickened Aluminum Alloy ShellAnti-Vibration Rubber Feet≤68dB Low Noise Operation100 ft Self-Sinking AirlineBuilt-In Safety FeaturesYear-Round UseAir Hose Diameter: 3/8 in,Air Hose Length: 100 ft / 30.5 m,Operating Environment Temperature: 23~104 ℉ / -5~40 ℃,Diffuser Plate Dimensions: 9.8 × 9.8 × 3.9 in / 248 × 248 × 100 mm,Power Supply: 120V / 60Hz,Noise Level: ≤68 dB,Max Airflow: 5.2 CFM @ 0 Mpa,Operating Environment Humidity: 20%-80%,Compressor Dimensions: 10 × 6.3 × 8.5 in / 255 × 160 × 215 mm,Rated Speed: 1665 rpm,Working Pressure: ≤0.3 Mpa,Item Model Number: OLF400D-140BS-FC,Product Net Weight: 56.4 lbs / 25.6 kg,Motor Power: 3/4 hp (550W)