Thomas Linear pump specs 5078-S. In using and dealing with Pond Aeration since the 1960's - we feel that these units are the: "Hands Down Best" linear diaphragm pump made. This is the pump that most others strive to compare to!! Used widely in both Lake / Pond aeration and Septic aeration applications.3.6 - 4.0 cfm Open Flow. 102 Liters of Air Per Minute. 4.4 psi Maximum Continuous Pressure. 115VAC, 60 Hz, 2.1A, 78 Watts. 8.6" L x 7" W x 9 T. The item "Thomas 5078-S LINEAR Diaphragm SEPTIC AIR PUMP AERATOR, Lake Pond Aeration -NEW" is in sale since Saturday, November 16, 2019. This item is in the category "Home & Garden\Home Improvement\Plumbing & Fixtures\Pumps". The seller is "winnnky" and is located in Wisconsin Dells, Wisconsin. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.