Pura Disc 13mm GMF Syringe Filters, 0.45um, 500 Pk
Whatman SKU: 6818-1304

Whatman Puradisc Glass Fiber (GF) Syringe Filters, 0.45 µm, 13 mm, 500/Pk - 6818-1304

Whatman's filtration expertise, refined across a century-plus of disciplined manufacturing, has made its name synonymous with laboratory-grade quality worldwide. Syringe filters replace the separate holder and vacuum apparatus of bulk filtration with a single disposable unit, eliminating cleaning between samples. Glass fiber withstands high-temperature pre-conditioning up to 500°C and wets rapidly with aqueous samples. Polypropylene construction maintains a low-dead-volume internal flow path and sheds virtually no extractable material into the sample. When chromatographic methods demand particle-free injections, the column stays clean from run to run, protecting method performance and column life.

Technical Specifications

• Reduces bioburden and particulate load ahead of sterilizing-grade filtration
• Inorganic construction suits demanding sample-preparation chemistries
• Biologically inert borosilicate fiber with broad chemical compatibility
• Autoclave steam sterilization at 121°C leaves structural integrity intact
• Surface silanol groups attract water molecules for immediate aqueous wetting

Housing Specifications

• Low moisture absorption keeps the housing dimensionally stable through humid storage and shipping
• Inert polyolefin wall contributes minimal sample adsorption to the filtrate
• Minimal intrinsic autofluorescence from the polypropylene housing supports background-sensitive fluorescence-based assay work downstream.
• Standardized luer connection geometry provides secure engagement with standard syringe tips

Clarify your routine aqueous samples in a single pass and cut down on juggling multiple filter types at the bench. Consistent aqueous clarification clears particulates without slowing your bench routine from the first sample of the day through the last. Reach out to the Tisch Scientific team for application support and volume pricing on your filtration product selection.

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

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

13mm

Filtration Area

1.3cm²

Holdup Volume

<25µl

Material

Glass Micro Fiber

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

550°C

Pack Count

500

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophilic

• Beverage QC Prep - Removes haze-forming particulates from wine, beer, and juice samples ahead of HPLC compositional and quality-release testing.
• Cannabis Extract Analysis - Glass fiber removes lipid and plant wax particulates from cannabis extracts ahead of cannabinoid potency testing.
• Air Sampling Extract Prep - Glass fiber removes insoluble particulates from air filter extracts ahead of metals and organic compound analysis.
• Urine Sample Prep - Glass fiber removes urinary sediment and mucus from urine samples ahead of HPLC and immunoassay clinical testing.
• Downstream Purification - Reduces turbidity in fermentation broth ahead of capture chromatography, protecting resin binding capacity and column life.
• Catalyst Sample Testing - Glass fiber removes fine catalyst particles from reaction product streams ahead of compositional and yield analysis.