Pura Disc 25mm Dp PP Syringe Filters, 0.45um, 200 Pk
Whatman SKU: 6788-2504

Whatman Puradisc Polypropylene (PP) Syringe Filters, 0.45 µm, 25 mm, 200/Pk - 6788-2504

Whatman's expertise in cellulose, glass fiber, and polymeric membrane production guides material selection and quality control. Across analytical workflows, the syringe filter is where particulates leave the sample stream. Polypropylene pairs hydrophobic behavior with broad chemical resistance while keeping binding low and capturing particulates through its depth and holds up to aggressive process chemistries. The polypropylene housing holds a reliable seal against the membrane edge while staying inert across common laboratory solvents and routes flow to minimize backpressure in service. For routine sample preparation across many methods, the syringe filter folds clarification into one disposable step.

Technical Specifications

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

Housing Specifications

• Resists aqueous acids, bases, and alcohols in routine sample prep
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Medical-grade polypropylene with broad chemical compatibility
• 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. Review our Chemical Compatibility Chart, or ask technical service to confirm chemical compatibility for your specific application.

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 Depth Filter (DpPP)

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

Hydrophobic

• Prefiltration - The robust depth of PP media allows it to handle high particulate loads before final membrane filtration
• Gas Filtration - Optimized for Hydrophobic PP membranes, which are excellent for venting applications and protecting vacuum pumps
• 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
• 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