Polysulfone Filter Funnel, 50mL, 25mm, 1/Pk
Pall SKU: 4204

Pall Polysulfone Filter Funnel 50mL, 25mm - 1/Pk - 4204

Pall's engineering and quality infrastructure extends from the process-scale filtration systems it supports worldwide to its laboratory membrane filtration devices. Each funnel concentrates the organisms and particulates a sample carries onto the membrane face, leaving them ready to lift onto a plate or balance. Sample-side retention concentrates captured material on the membrane surface while sustaining a consistent pore structure and delivers a clarified filtrate through the disc. Concentrating each sample onto a single membrane underpins the membrane filter technique behind regulated water and beverage microbiology.

Key Characteristics

• Uniform rated pore gives consistent retention across the membrane
• Seated membrane retains particulates and microorganisms at the surface
• Dead-end filtration through the disc delivers a clarified filtrate
• Standard disc format suits routine analytical filtration

Clarify your routine aqueous samples in a single pass and cut down on juggling multiple filter types at the bench. General-purpose aqueous filtration supports the sample types you handle every day from reagent and buffer preparation through routine sample clarification. Reach out to the Tisch Scientific team for application support, volume pricing, and technical assistance with your filtration product selection.

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

Diameter

25mm

Material

Polysulfone

Sterility

Sterile

• Reusable Lab Filtration - Durable, autoclavable construction supports repeated membrane filtration with aseptic technique.
• Beverage QC Filtration - Apparatus funnels accept any compatible membrane disc for beverage microbiology screening tests.
• Water Microbiology - The funnel concentrates the sample onto a chosen membrane for colony counting in water quality programs.
• High-Throughput Monitoring - Funnels pair with a manifold to filter many samples in parallel for routine microbial testing.
• Membrane Filtration Setup - The reusable funnel seats a membrane disc and drives the full sample through into a flask below.
• Particulate Determination - The funnel routes the full sample through a seated membrane to capture particulates for analysis.