Stainless Steel (304) Filter Funnel, 100mL, 47mm, 1/Pk
Pall SKU: 4221-N

Pall Stainless Steel Filter Funnel 100mL, 47mm - 1/Pk - 4221-N

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. Durable, chemically resistant construction stands up to repeated reuse while connecting to a vacuum flask or manifold and holds the membrane edge to prevent sample bypass. Concentrating each sample onto a single membrane underpins the membrane filter technique behind regulated water and beverage microbiology.

Key Characteristics

• Seats and seals a flat membrane disc for leak-free dead-end filtration
• Secure seal protects the membrane from twisting and tearing during setup
• Connects to a side-arm vacuum flask or filtration manifold
• Durable, chemically resistant body stands up to repeated reuse
• Autoclavable construction supports aseptic technique between samples

Filtering buffers, reagents, and aqueous samples keeps your preparation moving and consistent. General-purpose aqueous filtration supports the sample types you handle every day from reagent and buffer preparation through routine sample clarification. Call on the Tisch Scientific team to standardize filtration products across your methods with volume pricing and documentation.

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

Construction

304 Stainless Steel

Diameter

47mm

Sterility

Nonsterile

• Beverage QC Filtration - Apparatus funnels accept any compatible membrane disc for beverage microbiology screening tests.
• Reusable Lab Filtration - Durable, autoclavable construction supports repeated membrane filtration with aseptic technique.
• Water Microbiology - The funnel concentrates the sample onto a chosen membrane for colony counting in water quality programs.
• Particulate Determination - The funnel routes the full sample through a seated membrane to capture particulates for analysis.
• 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.