Danner 04540 Air Pump 2900 Cubic-Inches Minimum Air Volume Air Volume: 2900 cu.in/min - Max. Water Depth: 10' Noise Level: 40 dba - Watts: 40 Tubing (Not Included): 5/8" Inside Diameter Pressure: 5.89 psi - Amps: 0.5 Dimensions (L x W x H): 11" x 6.5" x 7" Oxygenating ponds and aquariums for a cleaner aquatic environment Promoting healthier fish and aquatic plant life Increasing the breakdown of fish waste Preventing icing over in outdoor ponds Driving protein skimmers