Zeta Plus™

Charge modified lenticular depth filter. Ideal for applications requiring high flow rates combined with large solid removal.

Solid removal up to 5kgs per 16” filters. Can be qualified at lab scale.

Lenticular Depth Filter Cartridges

Zeta Plus C, CP, S & SP Series filters are a family of advanced depth filters designed to provide optimal clarification of pharmaceutical, biological, bioprocess, cosmetic and food & beverage fluids. Zeta Plus C, CP, S & SP Series filters are composed of inorganic filter aid, cellulose and a resin system that imparts a positive charge to the filter matrix, aiding its adsorption of negatively charged contaminants.

Grade Choice

The Zeta Plus C, CP, S & SP Series filter are available in several grades, that meet the different fitration needs required by your applications. Filtration ratings are given in the following table for the various grades. The optimal filtration system for your particular application can be determined by on-site testing or by sample evaluation by a member of our Scientific Application Support Services group (SASS).

Pharmaceutical CP and SP Grade

Zeta Plus CP and SP media are manufactured following procedures described in 3M Purification's Drug Master Files submitted to the FDA (United States Food and Drug Administration). The characteristics and filtration mechanisms of the CP and SP Grades are the same as the standard C and S Series. The CP and SP Grade has complete product control and traceability. (see Graphic 1)

Features and Benefits

  • Depth filtration media designed to retain contaminants by mechanical entrapment and electrokinetic adsorption
    High contaminant holding capacity for economical filtration and reliable particle removal
  • Full range of scaleable capsule and cartridge filter configurations
    Allows pilot testing and scale-up with the same materials that will be used in full-scale systems
  • FDA Drug Master File and USP Class VI Biological Safety
    Eases validation and regulatory submissions by providing vital documentation and traceability
  • Self-contained, single-use disposable capsule and cartridge modules
    Reduced labour time for change-outs and capsules eliminate cleaning validation


Zeta Plus C, CP, S & SP Series filters are optimised for clarification of pharmaceutical, biological, bioprocess, cosmetic and food & beverage fluids. Examples of applications include:

Bio Pharmaceuticals Food & Beverages
Blood Products
Cough Syrups
Intravenous Solutions
Growth Media
Bioprocess Fluid
Graphic 1: Zeta Plus C, CP, S and SP Grade Selection
RR Retention Rating
MT Maximum temperature recommended of a working product in degrees centigrade
MoC Primary material of construction
MoC Primary material of construction
MP Maximum working pressure of housing in bar
Brand Manufacturing brand name supplying the product
FE Filter efficiency
Q Quality assurances and certificates validating this product