EasyPro 1/2 HP Rocking Piston Aeration System Aerates up to 50 feet deep - PA66WLD. Aerates 3/4 acre at 5' - 8' deep. Aerates 1½ acre at 8' - 12' deep.Aerates 3 acres at 12' - 16' deep. PA66WLD kit includes compressor, brass valve assembly with pressure relief valve, 300' of 3/8 Quick Sink tubing, fittings and clamps. At Graystone Creations we promise you the following. One of our customer service agents will return your call as soon as possible. Thank you for your interest and we look forward to assisting you further. John Olson - Graystone Creations.