PowerCore® air filtration technology is also available in a 2-stage, plastic housing design. PSD features a compact racetrack shape and built-in mounting brackets for installation ease. The 2-stage design incorporates a high efficiency inertial pre-cleaner, ideal for extended life in difficult environments. The side access, molded housing design makes filter servicing very easy. All of these features are combined to take advantage of the unique PowerCore® axial flow element, providing the ultimate in space saving design.