Pura Disc 25mm PP Syringe Filters, 0.45um, 50 Pk
Whatman SKU: 6786-2504

Whatman Puradisc Polypropylene (PP) Syringe Filters, 0.45 µm, 25 mm, 50/Pk - 6786-2504

Whatman manufactures under Cytiva's quality infrastructure, drawing on a filtration heritage that spans laboratory, environmental, and industrial applications. Syringe filters give the analyst a single-use device for clarifying samples right at the bench. Polypropylene resists a broad range of organic solvents, acids, and bases and repels water in vent and solvent service. The PP housing prevents sample bypass under rated operating pressure while routing flow to minimize backpressure in service 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

• Sustains throughput on particulate-laden solvent samples
• Low binding with nominal depth retention and high dirt-loading capacity
• Hydrophobic matrix suits solvent and non-aqueous sample streams
• High resistance to organic solvents, acids, and bases
• Low extractables protect sensitive downstream analyses

Housing Specifications

• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Thermal-bonded construction keeps adhesives out of the fluid path
• Resists aqueous acids, bases, and alcohols in routine sample prep
• 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. Reliable solvent prefiltration clears particulates from your organic samples ahead of HPLC and UPLC injection. Contact Tisch Scientific for technical guidance on selecting the right filtration product for your specific application requirements.

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

Bubble Point (psi)

(Hydrophobic)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.2cm²

Holdup Volume

<100µl

Material

Polypropylene (PP)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

50

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophobic

• Solvent Clarification - Polypropylene offers broad chemical resistance, making it suitable for filtering organic solvents
• Chemical Processing - Ideal for filtering acids, bases, and aggressive solvents that would degrade other membrane types
• Gas Filtration - Optimized for Hydrophobic PP membranes, which are excellent for venting applications and protecting vacuum pumps
• Prefiltration - The robust depth of PP media allows it to handle high particulate loads before final membrane filtration
• Research & Development - Supports protocols that need to remove particulates, providing the ability to protect analytical instruments
• Sample Clarification - Protecting analytical instruments via rapid removal of particulates to maintain high throughput in busy laboratories