GD/XP Syringe Filter, PTFE Filteration Medium, 0.45um (150 pcs)
Whatman SKU: 6974-2504

Whatman GD/XP PTFE Syringe Filters, 0.45 µm, 25 mm, 150/Pk - 6974-2504

Whatman applies the same process controls across its filtration portfolio, verifying rated performance at the production lot level. A syringe filter seats a membrane in a sealed housing that threads onto a standard luer fitting. The PTFE membrane withstands aggressive organics that degrade other media and delivers absolute particle cutoff at the rated pore size. The PP housing keeps the fluid path low in extractable contamination and sustains efficient flow on viscous samples. When sterile or particle-free preparation matters at the bench, the syringe filter delivers it with minimal added handling.

Technical Specifications

• Absolute pore size rating gives consistent results across protocols
• Chemically inert against aggressive solvents, strong acids, and alkalis
• Filters aggressive organic solvents without swelling or breakdown
• Stable across a wide operating temperature range for demanding methods
• Low extractables keep the chromatographic background clean

Housing Specifications

• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Optimized internal geometry minimizes backpressure in service
• Thermal-bonded construction keeps adhesives out of the fluid path
• Low extractable contribution protects sensitive downstream analyses

Filtering aggressive solvents and reagents through a filter that holds up to the chemistry keeps your sample prep reliable. Solvent-stream filtration handles the solvents and reagents your methods rely on so your filter holds its integrity through the run. Connect with our customer support technicians for chemical compatibility guidance and the right filtration product for your workflow.

For more information about chemical 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

Polytetrafluoroethylene (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

Polypropylene (10µm + 5µm)

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophobic

• Cryogenic Fluids - Remains functional and integral even at extreme temperatures, protecting sensitive equipment from damage
• Aggressive Solvent Filtration - PTFE is chemically inert, making it the only choice for filtering strong acids and bases
• Aerosol Sampling - The hydrophobic nature of PTFE allows for gas venting and air monitoring applications in harsh environments
• Organic Mobile Phases - Ideal for filtering 100% organic solvents in HPLC and GC workflows without any membrane degradation
• Sample Clarification - Protecting analytical instruments via rapid removal of particulates to maintain high throughput in busy laboratories
• Quality Control Testing - Optimized for delivering reproducible results by removing particulates in standard pharmaceutical protocols