All-Fluoropolymer Filter Cartridges

Graver Citadel PTFE Series (CTL):

Citadel pleated membrane cartridges feature a PTFE membrane and PFA structural components to provide excellent chemical and temperature resistance for aggressive chemical applications. The all-fluoropolymer construction provides for the highest level of fluid purity and will exhibit rapid rinse-up to 18 MΩ-cm resistivity and single digit ppb levels of TOC. Citadel filter cartridges are produced and manufactured in an ISO cleanroom and are 100% integrity tested to ensure performance standards.

Features & Benefits:

  • Manufactured, flushed, tested and packaged in an ISO Class 7 Cleanroom Environment
  • Filters are flushed with 18 M_-cm DI water to ensure low extractables and low particle shedding
  • 100% integrity tested to provide reliable performance
  • Resistivity rinse-up to 18 MOhm-cm and single digit ppb TOC levels with minimal throughput
  • Pore size ratings of 0.05, 0.1 and 0.2 microns to meet a broad range of applications
  • Wet-Pack option available to eliminate the requirement for solvent pre-wetting


Available End Connections: 222/Flat Single Open End

Available O-Rings/Gaskets: Chemraz, Kalrez, Teflon encapsulated Viton

Available Micron Ratings: 0.05, 0.1, 0.2, 0.45, 1.0

Available Lengths: 10″, 20″, 30″, 40″

Available Media Types: PTFE Membrane

Some part numbers included: CTL 0.05-10P3T; CTL 0.05-20P3T; CTL 0.05-30P3T; CTL 0.05-40P3T; CTL 0.1-10P3T; CTL 0.1-20P3T; CTL 0.1-30P3T; CTL 0.1-40P3T; CTL 0.2-10P3T; CTL 0.2-20P3T; CTL 0.2-30P3T; CTL 0.2-40P3T; CTL 0.45-10P3T; CTL 0.45-20P3T; CTL 0.45-30P3T; CTL 0.45-40P3T; CTL 1.0-10P3T; CTL 1.0-20P3T; CTL 1.0-30P3T; CTL 1.0-40P3T


Contact us for Current Pricing & Lead Times: 1-877-705-9864 or

Additional information

Weight 1 lbs
Dimensions 15 x 2 x 2 in