Four Leg High Volume Windmill Aerator This windmill tower looks more like traditional farm windmills and is more stable than the three-legged units. This windmill aerator for sale also pumps a large volume of air and has high-pressure capability due to the large head size for deeper ponds. One-piece welded steel hub secures easily to windmill. Five-year limited warranty. One-piece welded steel hub secures easily to Windmill Aerator. 6' diameter head with 12 blades, tapered blade design allows windmill to turn in low wind and yet produce large air volume in high winds. Windmill pumps 2.9 CFM @ 9 MPH wind, up to 5 CFM in higher winds! Over-speed protection — tail section turns head 12º - 15º away from the wind to protect from over-speed conditions. Intake air is filtered — the filter is reusable and easy to clean; keeps dirt, pollen, and debris from plugging up the pump. 16' & 20' windmills include the hinge set Five-year limited warranty on Four Leg High Volume Windmill Aerator.
