Patriot Bottom Aeration System LLS-20 , For Ponds to 2,000 Gallons, And Pond Depths To 12 Feet Whisper Quiet Operation: Reliable, Oil Free and Extremely Energy Efficient Includes: (1) 5" Weighted Air Difusser Ring. 20' of 3/8" Weighted Tubing. Necessary Fittings & Hardware. Discharge Outlet: 5/8"; Cord Length 6 Feet Output: .8 CFM. Maximum Depth 12'. Noise Rating (dB) 32. Volts 120. Watts 17 Frequency (Hz) 60. Dimensions (L x W x H) 9" x 7" x 7". (CFH = Cubic Feet Per Hour. CFM = Cubic Feet Per Minute). Indoor / Outdoor Use. 2 Year Warranty. Ships FedEx Ground or FedEx Home Delivery