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EZ-Fit® filtration unit without absorbent pad

0.45 µm MCE black membrane with 250 mL funnel, bulk packaging, suitable for solid cultivation

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Membrane filtration device made of gridded, mixed cellulose esters membrane for bioburden testing


black filter
gridded filter
mixed cellulose esters (MCE)
styrene-butadiene device

Quality Level


ISO 7004:1985


sterile; electron beam irradiated




pkg of Bulk packaging


250 mL sample volume

filter size

47 mm

pore size

0.45 μm pore size


sample type beverage(s)
sample(s) (environmental)
sample type food(s)
sample type pharmaceutical(s)


bioburden testing
food and beverages
water monitoring


for use with EZ-Fit® Filtration Manifold

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General description

The EZ-FIT® filtration units are sterile, single-use filtration devices made of black, gridded, and mixed cellulose esters (MCE) membrane with a pink base. They ensure a safe and fast way of performing membrane filtration and provide time saving and reliable microbial enumeration results. The filters prevent any leaks or sample by-pass of the membrane. The samples are covered by a vented lid throughout filtration and protected from contamination by a 360° rim that prevents forceps from accidentally touching the membrane filtration area. The process of filtration can be visualized until the end at any angle with the clear and transparent funnel material. These filtration units minimize sample residue and can be stacked to save the work area. They are disposable and designed to fit onto the EZ-FIT® Manifold, which features specific EZ-FIT® Filtration heads. It can also fit onto a standard #8 stopper. The bulk packaged units are provided with a protective plastic bag.


EZ-FIT® filtration units are used for the bioburden testing of liquid samples, including in-process and final product samples (beverages, pharmaceuticals, and water). They are also used in industrial QC and water monitoring.

Legal Information

EZ-FIT is a registered trademark of Merck KGaA, Darmstadt, Germany

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