Polycap SPF is an excellent choice for serum pre-filtration. Its unique filter media system has three layers: fine GMF (Glass Microfiber), ultrafine GMF, and a layer of 1.0µm Polyethersulfone (PES) membrane. This structure provides a means of serial filtration, especially useful in filtering serum or other hard to filter complex solutions. Tissue culture media is often serum based, with the serum usually being filtered and added to the media. Virology, Microbiology and Tissue Culture Laboratories in medical schools, hospitals, private testing laboratories and colleges/universities are the primary areas of application for Polycap SPF. Other applications requiring filtered and/or sterilized serum include immunoassay methods and diagnostic standards/controls†. Filtration with Polycap SPF, followed by a Polycap AS, provides the most efficient approach. Serum is not easy to filter. It contains a high degree of loading of complex particulates, including lipids, triglycerides and lipoproteins, that quickly clog small pore size filters. Proper prefiltration with Polycap SPF is essential to prevent this early clogging and extend the useful life of the final filter. Serum filtered through Polycap SPF has improved flow rates and higher throughput when subsequently filtered through a final sterilizing grade membrane filter.

• Optimized for Serum PreFiltration
• Unique Serial Filter Media in the following configuration:
– Inlet: Glass Microfiber (GMF) Media Ultrafine GMF (UGMF) Media
– Outlet: Polyethersulfone (PES) Microporus Membrane
• Rugged Virgin Polypropylene housing No Surfactants, Mold Release Agents, or Adhesives used.
• Autoclavable
• Product Identification and lot number stamped into each housing

Intended use:
The products are intended for research use only, and shall not be used in any clinical or in vitro procedures for diagnostic purposes.

†The Polycap SPF is not suitable for aggressive chemicals. Cytiva recommends the Polycap TF for aggressive chemicals.
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