The SUTFF modules require a SUTFF module holder which is different from the Centramate or Centrasette cassette holder.  The Centramate and Centrastte cassette holders have built-in ports for feed, retentate, and permeate.  In SUTFF, these ports are located on one of the SUTFF module endplates, and there are no ports on the module holder.     

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Cadence® Single-Use Tangential Flow Filtration (TFF) Modules