ECONOAIR-200 [1/4hp] Non Cabinet Pond and Lake Aerator [For .5 to 1.5 Surface Acres]The ECONOAIR 200 1 4hp pond and lake aerator includes these important FEATURES: *IMPORTANT NOTICE: All ECONOAIR sub surface aeration systems must house the air compressor inside a building barn or other structure to keep it out of the rain and or snow. Ventilation is also critical to keep the air compressor cool during operation. RELIANCE 4. 5 SRC 1 4hp Single Piston Air Compressor Pre Mounted On Heavy Duty Steel Pedestal Steel Wall Mounting Bracket