A filter arrangement includes a filter element, a frame construction secured to the filter element, and a handle member secured to the filter element. In preferred embodiments, the handle member is secured to the frame construction. Preferably, the filter element includes a central core member, wherein...http://www.google.es/patents/US7001450?utm_source=gb-gplus-sharePatente US7001450 - Filter element, air cleaner, and methods
