Nalgene™ Membrane and Prefilter Disks

Name: Nalgene™ Membrane and Prefilter Disks
SKU: DS0281-9000
Price: 180.00 USD

Carry out particulate and microbial analysis with these filter membranes. Available in various forms for water quality work, cold sterilization or sample clean up.

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Catalog Number	Material	Pore Size	Diameter (Metric)	Type
DS0281-9000	Glass Fiber		90 mm	Prefilter
DS0210-4020	Cellulose Acetate	0.2 μm	47 mm	Membrane Filter
DS0210-4045	Cellulose Acetate	0.45 μm	47 mm	Membrane Filter
DS0205-4045	Cellulose Nitrate	0.45 μm	47 mm	Membrane Filter
DS0281-5000	Glass Fiber		50 mm	Prefilter
DS0281-7500	Glass Fiber		75 mm	Prefilter
DS0215-4020	Nylon	0.2 μm	47 mm	Membrane Filter
DS0215-4045	Nylon	0.45 μm	47 mm	Membrane Filter
DS0205-6045	Cellulose Nitrate	0.45 μm	47 mm	Membrane Filter

9 Options

Catalog number DS0281-9000

Price (USD)

180.00

Case of 100

Add to cart

Material:

Glass Fiber

Diameter (Metric):

90 mm

Type:

Prefilter

Price (USD)

180.00

Case of 100

Add to cart

Rely on Thermo Scientific™ Nalgene™ Membrane and Prefilter Disks to meet a wide range of laboratory filtration needs. Used in conjunction with either single use or reusable hardware and filter holders, filter disks offer you flexibility and choice to fit many applications. Sterile filter disks are available in materials ranging from nylon, cellulose nitrate, cellulose acetate and glass fiber membranes.

Sterile membrane disks are optimized for microbial QA/QC testing and feature the highest recovery rates
White and black membranes for easy visibility of colonies
Gridded membranes are printed with non-toxic ink for easy enumeration of colonies
Cellulose nitrate membrane filters have official certification for water quality work

Specifications

Filter TypeMembrane Filter

MaterialGlass Fiber

Material (Membrane)Glass

SterilityNon-sterile

No. per Case100

No. per Pack100

TypePrefilter

Diameter (Metric)90 mm

Diameter (Metric) Membrane90 mm

Unit SizeCase of 100

Frequently asked questions (FAQs)

How do I use Thermo Scientific Nalgene glass fiber prefilters?

Glass fiber prefilters are available as an optional accessory (DS0281 series) and bundled with select Thermo Scientific Nalgene Rapid-Flow filter units. They are useful in filtration of solutions with an especially high particulate load, often enabling a higher volume to be filtered before significant flow decay by trapping and preventing the larger particulate matter from entering the final filter membrane. Simply place one prefilter on top of the membrane bonded inside the unit, wet slightly to hold in place, and proceed with filtration as usual.

What is the effective pore size of Thermo Scientific Nalgene glass fiber prefilters?

Our glass fiber prefilters have an effective pore size of 1.0 to 1.3 microns.