Zeta Plus™ EXT series with SP media are optimized for clarification of mammalian cell harvest fluids, clarification of high protein concentration feed streams and for optimal protection of downstream sterilizing grade membrane filters. Zeta Plus SP media are composed of inorganic filter aid, cellulose and a resin system that imparts a positive charge to the filter matrix.
The Zeta Plus™ EXT series media extends depth filtration capacity and protection of downstream membranes thereby extending filter life and lowering overall filtration costs. Zeta Plus EXT series is a family of advanced dual zone depth media designed to provide optimal clarification of bioprocess, biological and pharmaceutical fluids. Zeta Plus EXT series media consist of two distinct layers, or “zones” of filter media with the upstream zone more open than the down stream zone. This structure enhances the contaminant holding capacity of the filter media, since larger particles are trapped in the upper zone of the filter media and smaller particles are trapped in the lower zone, reducing premature plugging and extending service life.