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Durapore® Membrane Filter, 0.45 µm

0.45 µm pore size, hydrophilic PVDF, 47 mm membrane

Polyvinylidene fluoride membrane filter discs, Hydrophilic PVDF membrane filter discs, Polyvinylidene difluoride membrane filter discs


PVDF membrane
plain filter
white filter

Quality Level








>2.6 mL/min-cm2 water flow rate
4 L/min-cm2 air flow rate
85 °C max. temp.

filter diam.

47 mm


125 μm

gravimetric extractables


refractive index

n/D 1.42



pore size

0.45 μm pore size
70 % porosity

bubble point

≥1.55 bar, air with water at 23 °C

shipped in


General description

Filter Code: HVLP
Durapore® membranes provide high flow rates and throughput, low extractables and broad chemical compatibility. Hydrophlic Durapore membrane binds far less protein than nylon, nitrocellulose, or PTFE membranes.

Features & Benefits
- Available in several pore sizes (both hydrophilic and hydrophobic varieties) to suit your application needs
- Durapore membrane filters have very low protein binding to minimize interaction with your sample and maximize recovery
Filter Type: Screen filter


0.45 µm pore size, hydrophilic PVDF, 47 mm membrane

Other Notes

Directions for Use

  • Organism Retention: Microorganism
  • Mode of Action: Filtration (size exclusion)
  • Application: General laboratory filtration
  • Intended Use: Retention or removal of biological contaminants
  • Instructions for Use: Sterilizing filtration of a liquid through a membrane with a 0.2 μm (or smaller) pore size effectively removes biological contaminants, including bacteria, mold and yeast. For the selective retention of larger biological contaminents, liquid filtration through membranes with 0.45 μm (or larger) pore sizes may be used to trap and support microorganism growth for subsequent culture and analysis
  • Storage Statement: Store in dry location
  • Disposal Statement: Dispose of in accordance with applicable federal, state and local regulations.

Legal Information

Durapore is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Quality

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