F1 Blower Filter (M443-5) 20-3/4” O.D X 14-1/4” I.D. X 18-3/4” Long Designed to improve filtration and extend the service intervals of your industrial equipment by trapping particles without much restriction to the air flow. The molded end seal provides a durable one-component construction by fully encapsulating the media and cores into the material of the molded end seal. The molded end cap is also designed to act as a gasket against the seal plates in the filter housing; eliminating the need for additional gaskets. Inner cores are constructed of heavy duty sheet metal to ensure structural integrity. The radial fin design is comprised of pleated media, which increases the filter area, allows low pressure drop and high particle-holding capacity.