Three valve manifold with pressure relief. Valved outlet with heat reducing hose and 3/8 connections.Three QS2 Quick Sink self weighted dual head air diffusers. 300 3/8 Quick Sink weighted tubing. Approximately 1.5 cfm of air flow per diffuser. 09¢ per kWh, actual cost may vary. PA66W requires weather protection for the compressor. Aeration Kit for Ponds up to 3 acres. 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. The item "EasyPro Rocking Piston Pond Aeration System 1/2 HP Kit Quick Sink Tubing PA66W" is in sale since Monday, May 4, 2015. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Ponds & Water Features\Outdoor Fountains". The seller is "graystone-creations" and is located in Cleveland, Georgia. This item can be shipped to United States.