Can aerate up to a 3 acre pond with max depth of 16 feet. Approx. 1.5 cfm air flow per diffuser Voltage: 115. Lockable Steel Cabinet with fan 3 Valve Manifold w/ Pressure Relief & Gauge 300 feet of 3/8" Weighted Air Tubing 3 Rubber Membrane Diffusers 2-Year Warranty.