Product Details

OptiFluor SLF-G Cartridge

SLF-G - Super-fine Glass Micro Fiber Cartridge

Brand OptiFluor
Media: Gases
Micron Ratings: 0.01 to 0.5 µm
Filter Type: Pleated Membrane

Masterfilter SLF-G filter cartridges are composed of super-fine glass micro fiber which has a dirt holding capacity over 90%. They are designed for filtration of air and gas. Due to the high removal efficiency, SLF-G cartridges offer high process security, with high volume gas streams and can withstand high differential pressures at low pressure drop and stringent in-line steam sterilisations.

Features Benefits

  • 0.01 µm, 0.3 µm, 0.5 µm rated
  • High dirt holding capacity
  • Steam sterilisable
  • For tank venting
  • Low pressure drop
  • High surface area


  • Pharmaceuticals and Biologicals
  • Food and Beverage
  • Chemicals

Technical Specification

Materials of construction
Filter media: Super-fine Glass fiber
Support layers: Polypropylene
Inner core: Stainless Steel/Polypropylene
Outer cage: Polypropylene
End caps: Polypropylene
End cap insert: Stainless 304
O-Rings: EPDM, Silicone

Operating parameters 
Max. differential pressure: 5.5 bar at 25 °C, 2.1 bar at 100 °C
Max. operating temperature: 90 °C
In situ steam sterilisation: 121°C for 20 min with dP 0.3 bar
Autoclaving: 134 °C for 30 min
Filtration area: 0.4 m² / 10’’


  • Fermentation
  • LVP (Large Volume Parenterals)
  • SVP (Small Volume Parenterals)
  • Pharmaceutical Water Treatment
  • Ophthalmics
  • API (Active Pharmaceutical Ingridients)
  • Brewing
  • Wine
  • Distilled Spirits
  • Bottled Water
  • Soft Drinks
  • Raw Materials Clarification
  • Raw Materials Intermediate Polishing
  • Final Product Filtration

Filter Properties

  • Comply with the relevant requirements of EU 1935/2004, EU directive 10/2011, according to 21CFR and current USP Plastics Class VI