
Specially designed bypass holes are cut into certain areas of the filtermedia to prevent premature blinding of the filter. In conjunction with the bypass design, a second media, called a transport layer, helps to distribute fluid flow evenly through the filter. The outer layers of the filter provide a highly uniform barrier for final particle filtration. This construction results in very high dirtloading capacity, even at high flow rates. There are no sewn seams used in any of the filtering layers, thus allowing high filtration efficiencies for fine particles.