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

Polypropylene Depth Filter (DpPP) Syringe Filters, 0.45µm, 25mm - 6788-2504

Designed to protect sensitive chromatography columns from clogging, the Polypropylene Depth Filter (DpPP) Whatman Puradisc, 25mm, Depth Polypropylene Syringe Filter, 0.45µm 200/pk delivers exceptional retention of particulates without compromising flow rates. To ensure analytical precision, the unit is constructed with a high-grade Polypropylene Depth Filter (DpPP) membrane providing a consistent 0.45 cutoff that passes only your target analyte. Complementing the membrane's purity, the housing's thermal bonding eliminates the need for adhesives, removing a common source of extractable contamination. Consequently, by reducing the risk of downstream contamination, these filters serve as a critical safeguard for the integrity of your experimental results.

Key Polypropylene Depth Filter (DpPP) Membrane Characteristics

• Polypropylene Depth Filter (DpPP) membrane with hydrophobic affinity
• Low Binding characteristics
• Broad chemical compatibility with organic solvents
• Requires pre-wetting for aqueous solutions
• Verified 0.45 retention rating for clarification

Key Housing Characteristics

• High-purity Polypropylene encapsulation housing
• Luer-Lok/ Luer Slip for secure fitting
• 4.2cm² effective filtration area
• <100µl holdup volume to minimize sample loss

By selecting a filter that matches the exact chemical nature of your samples, you ensure that your workflow remains uninterrupted by membrane failures. Protecting your downstream processes requires a defensive strategy, and utilizing these verified filters gives you the peace of mind that your work is safe. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

For more information about chemical and material 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

Wetability

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