Analytical Filter Funnels

Photo of Nalgene Analytical Test Filter Funnels with CN Membrane-Sterile

Nalgene Sterile Analytical Test Filter Funnels with Cellulose Nitrate (CN) Membrane are for microbiological QC testing and analysis of water, food/beverage, raw material and finished product. The squeeze and twist funnel is easy to remove for retrieval of the CN membrane. High impact polystyrene collars are rugged for reliable performance. Meets requirements of APHA Standard Methods and EPA requirements for water quality work. 250mL sizes are useful when testing beverages that may foam. Cat. No.

Photo of Nalgene 130 Series Sterile Analytical Filter Units with CN Membrane

Use Nalgene 130 Series Sterile Analytical Filter Units with Cellulose Nitrate (CN) Membrane to recover and grow microorganisms for QC testing and analysis of water, food and beverage, raw materials and finished product. Complete, efficient filter units have an easily removable upper and filter membrane. Upper chamber snaps away from receiver for retrieval of membrane with sterile forceps. Receiver is graduated from 20 to 150mL for easy reading of sample volume.

Photo of Nalgene Sterile Disposable Analytical Filter Funnels with Cellulose Nitrate Membranes_150mL

Nalgene Sterile Disposable Analytical Filter Funnels with Cellulose Nitrate Membranes allow easy retrieval of filter membranes for growth and analysis. 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. Each funnel comes with a removable 47mm diameter x 0.45μm Triton™-free cellulose nitrate membrane with gray grid. These funnels can be used with filtering flasks and manifolds.