The Vertex High Flow 7 XL2 pond aerator is a super-efficient, affordable and safe system. In a typical pond, a High Flow 7 XL2 can aerate approximately 6-9 acres depending on shape, slope, oxygen demand and other factors. Two 3/4 Hp(1.12kW) Brookwood Safe-Start compressors, housed in our rustproof aluminum outdoor cabinet, feed seven bottom mounted Co-Active Air Stations utilizing Vertex’s Micron Bubble technology. The rising force of millions of bubbles circulates the entire water column, entraining bottom water up to the surface allowing vital oxygen to be absorbed and poisonous gasses expelled. With no electricity in the water, Vertex’s aeration systems are safe for any type of water recreation.