Repligen has acquired Spectrum, Inc., based in Rancho Dominguez, California, USA.  Spectrum is a recognized leader in membrane separation and hollow fiber filtration technology since 1970.  Spectrum products and systems are used for the filtration, isolation, purification and concentration of monoclonal antibodies, vaccines, recombinant Proteins, and diagnostics. A Repligen partner for many years, Spectrum provides the filters for Repligen's XCell™ ATF Systems.

Together, Repligen and Spectrum now offer the broadest range of hollow fiber and flat sheet filtration technologies for upstream cell culture and downstream purification applications.  The combined expertise in filtration within the two companies is unmatched in the industry today, signaling the exciting promise of further innovation in the critical filtration applications our customers perform every day.

Spectrum KrosFlo®
Hollow Fiber Filters and Systems

NEW! Tangential Flow Depth Filtration (TFDF) for perfusion cell culture

Single-use Hollow Fiber TFF Filters

TFF Filtration Systems,
featuring the KR2i  TFF System

Pro-Connex® Single-use
Module-Bag-Tubing (MBT) Sets

Spectra-Por® Dialysis Products

XCell™ ATF Systems

XCell™ ATF Single-use Systems

  • NEW! XCell™  ATF 10 Single-use System
  • XCell™ ATF 2, 6 Single-use Systems


XCell™ ATF Stainless Steel Systems

  • XCell™  ATF 2, 4, 6, 8, 10 Stainless Steel Systems

TangenX™ SIUS™ and PRO
Flat Sheet Cassettes and Membranes

TangenX® SIUS® Single-use Cassettes

TangenX® PRO Reusable Cassettes

TangenX® Membranes

  • ProStream
  • HyStream
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