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Thermo Scientific™ Nalgene™ Sterile Analytical Filter Funnels

Easily retrieve filter membranes for growth and analysis using these funnels. They are useful for large volume microbiological QC samples.

Manufacturer:  Thermo Scientific™ N1404045

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Catalog No. 09-740-30B




Easily retrieve filter membranes for growth and analysis using the Thermo Scientific™ Nalgene™ Sterile Analytical Filter Funnels. With a convenient snap-away design, these filters are particularly useful for large volume microbiological QC samples. They are compatible with filter manifolds and filtering flasks.

  • Disposable, presterilized funnel
  • Removable 47mm diameter membrane for use with filtering flasks and manifolds
  • 0.45μm Triton™-free cellulose nitrate membrane with gray grid
  • Gamma sterilized, individually sealed in plastic bag

Includes: Upper chamber with reference mark at 150mL; polystyrene cover; CN membrane; support pad; polystyrene support plate/funnel that fits a stopper or adapter with 9/16″ hole; quick-disconnect adapter for 1/4 or 5/16″ tubing. Each pack of 12 funnels includes one vacuum gasket that replaces stopper or adapter with 9/16″ or larger opening.

Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and Conditions of Sale, this product is warranted from the date we ship the product and for ninety (90) days thereafter.

Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.

Description & Specifications


Filter Funnels
filter manifolds and filtering flasks
White with gray grid
Membrane conforms to APHA Standard Methods, 16th ed., Section 909A, B, C. Meets EPA requirements for water quality work.
Cellulose Nitrate
Dia.: 47mm; Pore: 0.45μm; White with gray grid