The Shelco Microsentry Absolute Cartridge is a high efficiency, pleated media cartridge designed and tested to deliver 99.99% retention of particles at its published rating. The cartridge is offered in a variety of medias and styles canforming to 222, 226 and double open end sealing arangements. It is made from the highest integrity tested media that provides maximum contaminant holding capacity while still delivering the highest throughput. A unique thermal bonding process of manufacturing eliminates the use of any adhesives and guarantees the lowest level of extractables. Shelco's Absolute cartridges are available in micron retention rating from .2 to 10 micrometers and lengths up to 40".