Pura Disc 25mm Nylon Syringe Filters, 0.45um, 200 Pk
Whatman SKU: 6751-2504

Whatman Puradisc Nylon Syringe Filters, 0.45 µm, 25 mm, 200/Pk - 6751-2504

Whatman's established manufacturing platform delivers the consistency and lot-level documentation that analytical laboratories require. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. The nylon matrix holds consistent retention across mixed-phase samples while holding dimensional stability under rated backpressure and ships in economical bulk non-sterile packaging. The PP housing sustains efficient flow on viscous samples while holding extractables low for sensitive analyses and stays inert across common laboratory solvents. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Technical Specifications

• High tensile strength for stability under elevated differential pressures
• Non-sterile for routine clarification and sample prep
• Naturally hydrophilic surface wets without pre-wetting in aqueous applications
• Stable across the pH 3 to 12 operating range
• Broad compatibility with alcohols, aliphatic, and aromatic solvents

Housing Specifications

• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Resists aqueous acids, bases, and alcohols in routine sample prep
• Low extractable contribution protects sensitive downstream analyses
• Medical-grade polypropylene with broad chemical compatibility

Clarify your routine aqueous samples in a single pass and cut down on juggling multiple filter types at the bench. General-purpose aqueous filtration supports the sample types you handle every day across your water-analysis and general analytical workflows. Ask our friendly customer service team to confirm the pore size, membrane, and sterility options your filtration application calls for.

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

Bubble Point (psi)

2.0 bar (29 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.2cm²

Holdup Volume

<100µl

Material

Nylon

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

200

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Dissolution Testing - Nylon is the industry standard for automating dissolution workflows due to its broad solvent compatibility
• HPLC Sample Preparation - Optimized for the high-strength Nylon membrane, which is ideal for clarifying basic and neutral mobile phases
• Chemical Filtration - Excellent resistance to esters, bases, and alcohols makes Nylon the go-to choice for composite chemical streams
• Analytical Sample Prep - Optimized to ensure data integrity by effectively removing particulates before instrumental analysis
• Environmental Monitoring - Ideal for removing particulates in water and wastewater analysis to ensure regulatory compliance
• Research & Development - Supports protocols that need to remove particulates, providing the ability to protect analytical instruments