Pura Disc 25mm Dp PP Syringe Filters, 0.45um, 1000 Pk
Whatman SKU: 6790-2504

Whatman Puradisc Polypropylene (PP) Syringe Filters, 0.45 µm, 25 mm, 1000/Pk - 6790-2504

Whatman's brand recognition and documented performance history support specification in standardized analytical methods. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. Polypropylene pairs hydrophobic behavior with broad chemical resistance and keeps binding low while capturing particulates through its depth. The polypropylene housing resists aqueous acids, bases, and alcohols while sustaining efficient flow on viscous samples and holds extractables low for sensitive analyses. When sterile or particle-free preparation matters at the bench, the syringe filter delivers it with minimal added handling.

Technical Specifications

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

Housing Specifications

• Optimized internal geometry minimizes backpressure in service
• Resists aqueous acids, bases, and alcohols in routine sample prep
• Medical-grade polypropylene with broad chemical compatibility
• Low extractable contribution protects sensitive downstream analyses

Handling the harsh solvents your methods demand calls for a filter that holds up to the chemistry, pass after pass. Reliable solvent prefiltration clears particulates from your organic samples so your downstream method starts with a clean sample. Send your application details to our technical service team and request a filtration product recommendation.

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

1000

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
• Solvent Clarification - Polypropylene offers broad chemical resistance, making it suitable for filtering organic solvents
• Gas Filtration - Optimized for Hydrophobic PP membranes, which are excellent for venting applications and protecting vacuum pumps
• Chemical Processing - Ideal for filtering acids, bases, and aggressive solvents that would degrade other membrane types
• Quality Control Testing - Optimized for delivering reproducible results by removing particulates in standard pharmaceutical protocols
• Sample Clarification - Protecting analytical instruments via rapid removal of particulates to maintain high throughput in busy laboratories