Pall Profile® II depth filters and Pall Ultipleat® Profile® pleated retrofit filters are now available in a user-friendly SI configuration. The SI style element consists of a solid polypropylene endcap with a 302 series stainless steel spring on one end, and a polypropylene endcap holding a replaceable polyethylene gasket on the open end.

The integral closed endcap/spring assembly eliminates the requirement for the customer to individually place loose springs and cups on the top of each and every filter. This makes filter changeout quicker and easier in multiple around cartridge housings. The SI configuration also will enhance product quality since the cartridge is permanently sealed at one end, thereby minimizing the risk of fluid bypass with a double open ended retrofit filter.

Profile II depth style filters are all polypropylene. The 2¹⁄₂ inch diameter elements have an absolute rated downstream section, and a continuously profiled pore size upstream section, which significantly increases service life. The material of construction — chemically resistant polypropylene — permits application in a very wide range of corrosive and non-corrosive fluids. The fibers in Profile II filters may be considered continuous. No binder resin is used, as the fibers are bound by intertwining during the manufacturing process. As a result, Profile II filters show no media migration.

Pall Ultipleat Profile filters are 2¹⁄₂ inch diameter pleated polypropylene cartridges. Just like Profile II filters, the absolute rated filter medium within Ultipleat Profile elements is constructed using Pall's proprietary method of continuously varying fiber diameter to create a tapered pore filter medium

As a result of this unique medium construction and a proprietary crescent-shaped pleat structure, the pressure drop of Ultipleat Profile filters is as low as half that of higher area pleated filters, and as low as one-fifteenth that of conventional depth filters. Consequently, Ultipleat Profile retrofit filters provide exceptional service life. The Ultipleat Profile medium is thicker than that found in many conventional pleated filters and is optimized for gel removal and sharp, distinct particle removal. This makes the elements ideal for viscous fluids and dispersions in addition to those many applications where long service life is desired.

Ultipleat Profile and Profile II retrofit filters have numerous applications in a broad range of industries that include chemical, petrochemical, photochemical, pharmaceutical, biological, electronic, magnetic tape, electroplating, food and beverage, cosmetic, veterinary, medical and fermentation industries. They are used as both prefilters and final filters.