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L23 Series Filter Cartridges

L23 Series Filter Cartridge is constructed of highly asymmetric polyethersulfone membrane from Germany and imported support layer. Unique double layer hydrophilic polyethersul-fone contributes to its excellent filtration performance and reliable bacteria-intercepting ability. It is especially used in pharmaceutical industry with stringent requirement. All components of L23 filter cartridges comply with FDA regulations. This filter can withstand repeated steam sterilization.


  • Unique double layer hydrophilic polyethersulfone with double security makes it have reliable bacteria-intercepting ability, increasing filtration safety factor by more than 10 times.
  • Large effective filtration area makes the filter longer service life and lower cost.
  • Broad chemical compatibility (PH1-14), it is suitable for various pharmaceutical filtration.
  • Structure Stabilization, it can withstand sterilization cycle with 50 times
  • 100% integrity test ensures absolute sterilization
  • Low protein adsorption
  • ISO9001:2015 certified Quality Management System
  • Full traceability to each filter with unique serial number

Material of Constructions

Media PES
Support PP
Cage/core/end cap PP
Sealing Silicone, EPDM, NBR, FKM, E-FKM


  • Outer Diameter 69 mm
  • Length 5”, 10”, 20”, 30”, 40”


Max Operating Temperature 80 °C
Max Operating DP 4.0 Bar @ 20℃
  2.4 Bar @ 80℃
Autoclave Sterilization 121℃, 60Min
SIP 125℃, 30Min
Filtration Area 0.65m² per 10” filter
10” Filter Cartridges ﹤ 20 mg


  • iological vaccine/blood products sterilization filtration
  • API sterilization filtration
  • Large infusion (LVP), small injection (SVP) sterilization filtration
  • Ophthalmic preparation sterilization filtration
  • Buffers and reagents sterilization filtration


  • Validated with B. diminuta (ATCC 191463) at 107/cm2 (0.22μm). Each membrane filter element has been individually tested for integrity.
  • Individual element is tracked by serial number.
  • Manufactured according to ISO 9001:2015 certified quality management system.
  • Meets USP Biological Reactivity Test requirements of the current USP for plastic class Ⅵ-121℃.

Effluent quality

  • Non-fiber releasing
  • Non-pyrogenic per USP Bacterial Endotoxins (<0.25EV/mL)
  • Meets TOC and water conductivity per USP Purified Water, pH per USP Sterile Purified Water.

Integrity Test

Removal Rating Bubble Point ≥ (Water) Diffusion Flow ≤ (10”Ø69mm)
2210 = 0.22+0.1 4.8Bar 25ml/min @ 4.475Bar
2222 = 0.22+0.22 3.2Bar 20ml/min @ 2.76Bar
4522 = 0.45+ 0.22 3.2Bar 25ml/min @ 2.76Bar
4545 = 0.45+0.45 2.1Bar 20ml/min @ 1.70Bar
6545 = 0.65+0.45 2.1Bar 25ml/min @ 1.70Bar

Ordering Information

To place an order, please make up the product code of the configuration you need, guided by the tabular data and observing the order of the values in the code according to the picture. After that, click the Order button and enter the received code in the Product field. Fill in the remaining fields of the Order form and click Submit. Our managers will contact you soon.

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