Ultra-Flow filters, with options of polypropylene and Nylon filter media, have two major design characteristics. The first is a multi-layer structure with fine fibers in the inner layer and coarse fibers in the outer, leading to graded pore diameters and true depth filtration. The graded depth filtration gives longer service life and lower pressure drop than competitor’s products. The second feature is the large design dimensions. With an inner diameter of 115mm and an outer diameter of 152mm Ultra Flow filters are suitable for high flow rates, reducing equipment space, frequency of replacing filters, and disposal costs.