Whatman
GD/X 25mm Syringe Filter, PTFE Filteration Medium, 0.45um (150 pcs) SKU: 6874-2504

GF/PTFE Syringe Filters, 0.45µm, 25mm - 6874-2504

Reducing background noise in analytical assays begins with proper clarification, and the GF/PTFE Whatman GD/X 25mm Syringe Filter, PTFE filtrationmedium, 0.45µm, 150/pk is engineered to remove interfering solids efficiently. Facilitating rapid sample turnover, the hydrophobic GF/PTFE membrane structure ensures the 0.45 rating remains consistent even under pressure. To guarantee structural reliability, each unit undergoes strict quality control to ensure the housing and membrane seal withstand standard operating pressures without leakage. Meeting the needs of regulated environments, this series supports compliance with stringent purity protocols across pharmaceutical and environmental applications.

Key GF/PTFE Membrane Characteristics

• GF/PTFE membrane with hydrophobic (requires pre-wetting) or hydrophilic (if treated) affinity
• Low Protein Binding characteristics
• Extreme chemical resistance to aggressive solvents, acids, and bases
• Hydrophobic version acts as an effective moisture barrier
• Verified 0.45 retention rating for clarification

Key Housing Characteristics

• High-purity Polypropylene encapsulation housing
• Luer-Lok/ Luer Slip for secure fitting
• 4.6cm² effective filtration area
• 1400 µL holdup volume to minimize sample loss

By selecting a filter that matches the exact chemical nature of your samples, you ensure that your workflow remains uninterrupted by membrane failures. Protecting your downstream processes requires a defensive strategy, and utilizing these verified filters gives you the peace of mind that your work is safe. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

For more information about chemical and material compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

0.6 bar (9 psi) [IPA]

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.6cm²

Holdup Volume

1.4ml

Material

GF/PTFE

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

150

Pore Size (µm)

0.45

Prefilter (Yes/No)

Yes

Prefilter Material

Glass Microfiber (GMF)

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wetability

Hydrophobic

• Cryogenic Fluids - Remains functional and integral even at extreme temperatures, protecting sensitive equipment from damage
• Organic Mobile Phases - Ideal for filtering 100% organic solvents in HPLC and GC workflows without any membrane degradation
• Aerosol Sampling - The hydrophobic nature of PTFE allows for gas venting and air monitoring applications in harsh environments
• Aggressive Solvent Filtration - PTFE is chemically inert, making it the only choice for filtering strong acids and bases
• General Laboratory Filtration - Increases workflow efficiency by protecting analytical instruments without sacrificing flow rates
• Biological Fluid Analysis - Protects sensitive downstream instruments from removing particulates that can cause system failure